13225512931 has 2 divisors, whose sum is σ = 13225512932. Its totient is φ = 13225512930.

The previous prime is 13225512917. The next prime is 13225512961. The reversal of 13225512931 is 13921552231.

It is a weak prime.

It is an emirp because it is prime and its reverse (13921552231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13225512931 - 2¹⁹ = 13224988643 is a prime.

It is a super-2 number, since 2×13225512931² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13225512961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6612756465 + 6612756466.

It is an arithmetic number, because the mean of its divisors is an integer number (6612756466).

Almost surely, 2^13225512931 is an apocalyptic number.

13225512931 is a deficient number, since it is larger than the sum of its proper divisors (1).

13225512931 is an equidigital number, since it uses as much as digits as its factorization.

13225512931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16200, while the sum is 34.

The spelling of 13225512931 in words is "thirteen billion, two hundred twenty-five million, five hundred twelve thousand, nine hundred thirty-one".