13231213031 has 2 divisors, whose sum is σ = 13231213032. Its totient is φ = 13231213030.

The previous prime is 13231213019. The next prime is 13231213063. The reversal of 13231213031 is 13031213231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13231213031 - 2²⁶ = 13164104167 is a prime.

It is a super-2 number, since 2×13231213031² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 13231212994 and 13231213012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13231212031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6615606515 + 6615606516.

It is an arithmetic number, because the mean of its divisors is an integer number (6615606516).

Almost surely, 2^13231213031 is an apocalyptic number.

13231213031 is a deficient number, since it is larger than the sum of its proper divisors (1).

13231213031 is an equidigital number, since it uses as much as digits as its factorization.

13231213031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 13231213031 its reverse (13031213231), we get a palindrome (26262426262).

The spelling of 13231213031 in words is "thirteen billion, two hundred thirty-one million, two hundred thirteen thousand, thirty-one".