21310539948030 has 64 divisors (see below), whose sum is σ = 51653047982400. Its totient is φ = 5626396723200.

The previous prime is 21310539948029. The next prime is 21310539948043. The reversal of 21310539948030 is 3084993501312.

It is a super-2 number, since 2×21310539948030² (a number of 27 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 31 ways as a sum of consecutive naturals, for example, 160732806 + ... + 160865334.

It is an arithmetic number, because the mean of its divisors is an integer number (807078874725).

Almost surely, 2^{21310539948030} is an apocalyptic number.

21310539948030 is an abundant number, since it is smaller than the sum of its proper divisors (30342508034370).

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

21310539948030 is a wasteful number, since it uses less digits than its factorization.

21310539948030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185709.

The product of its (nonzero) digits is 699840, while the sum is 48.

The spelling of 21310539948030 in words is "twenty-one trillion, three hundred ten billion, five hundred thirty-nine million, nine hundred forty-eight thousand, thirty".