21310300031101 has 16 divisors (see below), whose sum is σ = 23871983636160. Its totient is φ = 18904681877760.

The previous prime is 21310300031089. The next prime is 21310300031147. The reversal of 21310300031101 is 10113000301312.

It is a cyclic number.

It is not a de Polignac number, because 21310300031101 - 2²⁵ = 21310266476669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21310300031201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167388555 + ... + 167515816.

It is an arithmetic number, because the mean of its divisors is an integer number (1491998977260).

Almost surely, 2^{21310300031101} is an apocalyptic number.

It is an amenable number.

21310300031101 is a deficient number, since it is larger than the sum of its proper divisors (2561683605059).

21310300031101 is a wasteful number, since it uses less digits than its factorization.

21310300031101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334904604.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 21310300031101 its reverse (10113000301312), we get a palindrome (31423300332413).

The spelling of 21310300031101 in words is "twenty-one trillion, three hundred ten billion, three hundred million, thirty-one thousand, one hundred one".