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23231131023120 = 243519891972231303
BaseRepresentation
bin1010100100000111010110…
…10011111111011100010000
310001020212121110112022000120
411102003223103333130100
511021104324020214440
6121224122333350240
74615252040404236
oct522035323773420
9101225543468016
1023231131023120
1174472a3912399
122732422938380
13cc68bc91b437
145a456d976956
152a4465adadd0
hex1520eb4ff710

23231131023120 has 640 divisors, whose sum is σ = 77452642713600. Its totient is φ = 5743216410624.

The previous prime is 23231131023071. The next prime is 23231131023193. The reversal of 23231131023120 is 2132013113232.

It is a super-2 number, since 2×232311310231202 (a number of 28 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 17828956389 + ... + 17828957691.

It is an arithmetic number, because the mean of its divisors is an integer number (121019754240).

Almost surely, 223231131023120 is an apocalyptic number.

23231131023120 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 23231131023120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38726321356800).

23231131023120 is an abundant number, since it is smaller than the sum of its proper divisors (54221511690480).

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

23231131023120 is a wasteful number, since it uses less digits than its factorization.

23231131023120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1847 (or 1841 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 23231131023120 its reverse (2132013113232), we get a palindrome (25363144136352).

The spelling of 23231131023120 in words is "twenty-three trillion, two hundred thirty-one billion, one hundred thirty-one million, twenty-three thousand, one hundred twenty".