21313255345410 has 64 divisors (see below), whose sum is σ = 58692120044544. Its totient is φ = 4852192440000.

The previous prime is 21313255345409. The next prime is 21313255345427. The reversal of 21313255345410 is 1454355231312.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 202121976 + ... + 202227395.

It is an arithmetic number, because the mean of its divisors is an integer number (917064375696).

Almost surely, 2^{21313255345410} is an apocalyptic number.

21313255345410 is an abundant number, since it is smaller than the sum of its proper divisors (37378864699134).

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

21313255345410 is a wasteful number, since it uses less digits than its factorization.

21313255345410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404349639.

The product of its (nonzero) digits is 216000, while the sum is 39.

The spelling of 21313255345410 in words is "twenty-one trillion, three hundred thirteen billion, two hundred fifty-five million, three hundred forty-five thousand, four hundred ten".