13000331231 has 2 divisors, whose sum is σ = 13000331232. Its totient is φ = 13000331230.

The previous prime is 13000331219. The next prime is 13000331233. The reversal of 13000331231 is 13213300031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13000331231 - 2¹⁸ = 13000069087 is a prime.

It is a super-2 number, since 2×13000331231² (a number of 21 digits) contains 22 as substring.

Together with 13000331233, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13000331233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6500165615 + 6500165616.

It is an arithmetic number, because the mean of its divisors is an integer number (6500165616).

Almost surely, 2^13000331231 is an apocalyptic number.

13000331231 is a deficient number, since it is larger than the sum of its proper divisors (1).

13000331231 is an equidigital number, since it uses as much as digits as its factorization.

13000331231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 13000331231 its reverse (13213300031), we get a palindrome (26213631262).

The spelling of 13000331231 in words is "thirteen billion, three hundred thirty-one thousand, two hundred thirty-one".