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23131120332000 = 2535323312703497
BaseRepresentation
bin1010100001001101000100…
…01101011110110011100000
310000220022110112202210022110
411100212202031132303200
511012440013301111000
6121110142345235320
74605111503510262
oct520464215366340
9100808415683273
1023131120332000
11740894244495a
122716b71492b40
13cba341b376b5
1459d7a3331b32
152a1a6098d850
hex1509a235ece0

23131120332000 has 384 divisors, whose sum is σ = 81622973472768. Its totient is φ = 5709783552000.

The previous prime is 23131120331999. The next prime is 23131120332013. The reversal of 23131120332000 is 23302113132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7204252 + ... + 9907748.

It is an arithmetic number, because the mean of its divisors is an integer number (212559826752).

Almost surely, 223131120332000 is an apocalyptic number.

23131120332000 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 23131120332000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40811486736384).

23131120332000 is an abundant number, since it is smaller than the sum of its proper divisors (58491853140768).

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

23131120332000 is a wasteful number, since it uses less digits than its factorization.

23131120332000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2703579 (or 2703561 counting only the distinct ones).

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

Adding to 23131120332000 its reverse (23302113132), we get a palindrome (23154422445132).

The spelling of 23131120332000 in words is "twenty-three trillion, one hundred thirty-one billion, one hundred twenty million, three hundred thirty-two thousand".