23057721031256 has 32 divisors (see below), whose sum is σ = 44827316805600. Its totient is φ = 11105606131200.

The previous prime is 23057721031231. The next prime is 23057721031291. The reversal of 23057721031256 is 65213012775032.

It is a super-2 number, since 2×23057721031256² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114664820 + ... + 114865731.

It is an arithmetic number, because the mean of its divisors is an integer number (1400853650175).

Almost surely, 2^{23057721031256} is an apocalyptic number.

It is an amenable number.

23057721031256 is a deficient number, since it is larger than the sum of its proper divisors (21769595774344).

23057721031256 is a wasteful number, since it uses less digits than its factorization.

23057721031256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229531019 (or 229531015 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 44.

The spelling of 23057721031256 in words is "twenty-three trillion, fifty-seven billion, seven hundred twenty-one million, thirty-one thousand, two hundred fifty-six".