20312513027 has 16 divisors (see below), whose sum is σ = 21912145920. Its totient is φ = 18766324800.

The previous prime is 20312513017. The next prime is 20312513057. The reversal of 20312513027 is 72031521302.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20312513027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20312512987 and 20312513005.

It is not an unprimeable number, because it can be changed into a prime (20312513017) 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, 2856158 + ... + 2863260.

It is an arithmetic number, because the mean of its divisors is an integer number (1369509120).

Almost surely, 2^20312513027 is an apocalyptic number.

20312513027 is a deficient number, since it is larger than the sum of its proper divisors (1599632893).

20312513027 is a wasteful number, since it uses less digits than its factorization.

20312513027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10834.

The product of its (nonzero) digits is 2520, while the sum is 26.

The spelling of 20312513027 in words is "twenty billion, three hundred twelve million, five hundred thirteen thousand, twenty-seven".