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121311330110232 = 233139229158796103
BaseRepresentation
bin11011100101010011111110…
…101111010000101100011000
3120220112020202011201201111220
4123211103332233100230120
5111400031101002011412
61110001353344052040
734360311564206103
oct3345237657205430
9526466664651456
10121311330110232
11357209342a3969
1211732b47004020
13528c7bc95c742
1421d56dd29973a
15e058bd0c568c
hex6e54febd0b18

121311330110232 has 64 divisors (see below), whose sum is σ = 306794072928000. Its totient is φ = 39970884426624.

The previous prime is 121311330110231. The next prime is 121311330110237. The reversal of 121311330110232 is 232011033113121.

It is a super-2 number, since 2×1213113301102322 (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121311330110231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78634108 + ... + 80161995.

It is an arithmetic number, because the mean of its divisors is an integer number (4793657389500).

Almost surely, 2121311330110232 is an apocalyptic number.

121311330110232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121311330110232 is an abundant number, since it is smaller than the sum of its proper divisors (185482742817768).

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

121311330110232 is a wasteful number, since it uses less digits than its factorization.

121311330110232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158796480 (or 158796476 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 121311330110232 its reverse (232011033113121), we get a palindrome (353322363223353).

The spelling of 121311330110232 in words is "one hundred twenty-one trillion, three hundred eleven billion, three hundred thirty million, one hundred ten thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 24 139 229 278 417 458 556 687 834 916 1112 1374 1668 1832 2748 3336 5496 31831 63662 95493 127324 190986 254648 381972 763944 158796103 317592206 476388309 635184412 952776618 1270368824 1905553236 3811106472 22072658317 36364307587 44145316634 66217974951 72728615174 88290633268 109092922761 132435949902 145457230348 176581266536 218185845522 264871899804 290914460696 436371691044 529743799608 872743382088 5054638754593 10109277509186 15163916263779 20218555018372 30327832527558 40437110036744 60655665055116 121311330110232