21313256427060 has 96 divisors (see below), whose sum is σ = 64534336914432. Its totient is φ = 5224570951680.

The previous prime is 21313256427053. The next prime is 21313256427077. The reversal of 21313256427060 is 6072465231312.

It is a super-2 number, since 2×21313256427060² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 56502244 + ... + 56878203.

It is an arithmetic number, because the mean of its divisors is an integer number (672232676192).

Almost surely, 2^{21313256427060} is an apocalyptic number.

21313256427060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21313256427060 is an abundant number, since it is smaller than the sum of its proper divisors (43221080487372).

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

21313256427060 is a wasteful number, since it uses less digits than its factorization.

21313256427060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113380713 (or 113380711 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 42.

The spelling of 21313256427060 in words is "twenty-one trillion, three hundred thirteen billion, two hundred fifty-six million, four hundred twenty-seven thousand, sixty".