21012313101130 has 32 divisors (see below), whose sum is σ = 40732465256784. Its totient is φ = 7758220248576.

The previous prime is 21012313101127. The next prime is 21012313101149. The reversal of 21012313101130 is 3110131321012.

It can be written as a sum of positive squares in 8 ways, for example, as 2841636249 + 21009471464881 = 53307^2 + 4583609^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21012313101098 and 21012313101107.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4157902 + ... + 7701478.

Almost surely, 2^{21012313101130} is an apocalyptic number.

21012313101130 is a deficient number, since it is larger than the sum of its proper divisors (19720152155654).

21012313101130 is a wasteful number, since it uses less digits than its factorization.

21012313101130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3589210.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 21012313101130 its reverse (3110131321012), we get a palindrome (24122444422142).

The spelling of 21012313101130 in words is "twenty-one trillion, twelve billion, three hundred thirteen million, one hundred one thousand, one hundred thirty".