23051412520 has 32 divisors (see below), whose sum is σ = 51899301000. Its totient is φ = 9214587648.

The previous prime is 23051412491. The next prime is 23051412557. The reversal of 23051412520 is 2521415032.

It can be written as a sum of positive squares in 4 ways, for example, as 22058784484 + 992628036 = 148522^2 + 31506^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124059 + ... + 247978.

Almost surely, 2^23051412520 is an apocalyptic number.

23051412520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23051412520 is an abundant number, since it is smaller than the sum of its proper divisors (28847888480).

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

23051412520 is a wasteful number, since it uses less digits than its factorization.

23051412520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373597 (or 373593 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 23051412520 its reverse (2521415032), we get a palindrome (25572827552).

The spelling of 23051412520 in words is "twenty-three billion, fifty-one million, four hundred twelve thousand, five hundred twenty".