13013212931 has 2 divisors, whose sum is σ = 13013212932. Its totient is φ = 13013212930.

The previous prime is 13013212903. The next prime is 13013212939. The reversal of 13013212931 is 13921231031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13013212931 - 2¹⁰ = 13013211907 is a prime.

It is a super-2 number, since 2×13013212931² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13013212931.

It is not a weakly prime, because it can be changed into another prime (13013212939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6506606465 + 6506606466.

It is an arithmetic number, because the mean of its divisors is an integer number (6506606466).

Almost surely, 2^13013212931 is an apocalyptic number.

13013212931 is a deficient number, since it is larger than the sum of its proper divisors (1).

13013212931 is an equidigital number, since it uses as much as digits as its factorization.

13013212931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 26.

Adding to 13013212931 its reverse (13921231031), we get a palindrome (26934443962).

The spelling of 13013212931 in words is "thirteen billion, thirteen million, two hundred twelve thousand, nine hundred thirty-one".