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23331132120 = 23355313212777
BaseRepresentation
bin10101101110101001…
…001101001011011000
32020012222122022110110
4111232221031023120
5340240232211440
614415043044320
71454111231232
oct255651151330
966188568413
1023331132120
1199928a797a
1246316706a0
13227a86a32a
1411b4887252
1591841d080
hex56ea4d2d8

23331132120 has 128 divisors (see below), whose sum is σ = 71393711040. Its totient is φ = 6097428480.

The previous prime is 23331132119. The next prime is 23331132131. The reversal of 23331132120 is 2123113332.

It is a congruent number.

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, 8400172 + ... + 8402948.

Almost surely, 223331132120 is an apocalyptic number.

23331132120 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 23331132120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35696855520).

23331132120 is an abundant number, since it is smaller than the sum of its proper divisors (48062578920).

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

23331132120 is a wasteful number, since it uses less digits than its factorization.

23331132120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4165 (or 4161 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 23331132120 its reverse (2123113332), we get a palindrome (25454245452).

The spelling of 23331132120 in words is "twenty-three billion, three hundred thirty-one million, one hundred thirty-two thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 53 60 106 120 159 212 265 318 424 530 636 795 1060 1272 1321 1590 2120 2642 2777 3180 3963 5284 5554 6360 6605 7926 8331 10568 11108 13210 13885 15852 16662 19815 22216 26420 27770 31704 33324 39630 41655 52840 55540 66648 70013 79260 83310 111080 140026 147181 158520 166620 210039 280052 294362 333240 350065 420078 441543 560104 588724 700130 735905 840156 883086 1050195 1177448 1400260 1471810 1680312 1766172 2100390 2207715 2800520 2943620 3532344 3668417 4200780 4415430 5887240 7336834 8401560 8830860 11005251 14673668 17661720 18342085 22010502 29347336 36684170 44021004 55026255 73368340 88042008 110052510 146736680 194426101 220105020 388852202 440210040 583278303 777704404 972130505 1166556606 1555408808 1944261010 2333113212 2916391515 3888522020 4666226424 5832783030 7777044040 11665566060 23331132120