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20331232110120 = 23352231098769151
BaseRepresentation
bin1001001111101101110111…
…10111100010011000101000
32122222122110112010010010010
410213312323313202120220
510131101330410010440
6111124012235451520
74165611612346011
oct447667367423050
978878415103103
1020331232110120
116529477545998
1223443b45b6ba0
13b462c4832479
145040732d6008
15253cde3ed580
hex127dbbde2628

20331232110120 has 128 divisors (see below), whose sum is σ = 61273673072640. Its totient is φ = 5396780217600.

The previous prime is 20331232110103. The next prime is 20331232110149. The reversal of 20331232110120 is 2101123213302.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 293977545 + ... + 294046695.

It is an arithmetic number, because the mean of its divisors is an integer number (478700570880).

Almost surely, 220331232110120 is an apocalyptic number.

20331232110120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20331232110120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30636836536320).

20331232110120 is an abundant number, since it is smaller than the sum of its proper divisors (40942440962520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20331232110120 is a wasteful number, since it uses less digits than its factorization.

20331232110120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80375 (or 80371 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 20331232110120 its reverse (2101123213302), we get a palindrome (22432355323422).

The spelling of 20331232110120 in words is "twenty trillion, three hundred thirty-one billion, two hundred thirty-two million, one hundred ten thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 223 446 669 892 1115 1338 1784 2230 2676 3345 4460 5352 6690 8920 10987 13380 21974 26760 32961 43948 54935 65922 69151 87896 109870 131844 138302 164805 207453 219740 263688 276604 329610 345755 414906 439480 553208 659220 691510 829812 1037265 1318440 1383020 1659624 2074530 2450101 2766040 4149060 4900202 7350303 8298120 9800404 12250505 14700606 15420673 19600808 24501010 29401212 30841346 36751515 46262019 49002020 58802424 61682692 73503030 77103365 92524038 98004040 123365384 147006060 154206730 185048076 231310095 294012120 308413460 370096152 462620190 616826920 759762037 925240380 1519524074 1850480760 2279286111 3039048148 3798810185 4558572222 6078096296 7597620370 9117144444 11396430555 15195240740 18234288888 22792861110 30390481480 45585722220 91171444440 169426934251 338853868502 508280802753 677707737004 847134671255 1016561605506 1355415474008 1694269342510 2033123211012 2541404013765 3388538685020 4066246422024 5082808027530 6777077370040 10165616055060 20331232110120