21313013030 has 32 divisors (see below), whose sum is σ = 38512472544. Its totient is φ = 8492150016.

The previous prime is 21313013027. The next prime is 21313013053. The reversal of 21313013030 is 3031031312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2934884 + ... + 2942136.

It is an arithmetic number, because the mean of its divisors is an integer number (1203514767).

Almost surely, 2^21313013030 is an apocalyptic number.

21313013030 is a deficient number, since it is larger than the sum of its proper divisors (17199459514).

21313013030 is a wasteful number, since it uses less digits than its factorization.

21313013030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8360.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 21313013030 its reverse (3031031312), we get a palindrome (24344044342).

The spelling of 21313013030 in words is "twenty-one billion, three hundred thirteen million, thirteen thousand, thirty".