13231613231 has 2 divisors, whose sum is σ = 13231613232. Its totient is φ = 13231613230.

The previous prime is 13231613221. The next prime is 13231613251.

13231613231 is nontrivially palindromic in base 10.

13231613231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 13231613231 - 2²² = 13227418927 is a prime.

It is a super-2 number, since 2×13231613231² (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 13231613231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13231613201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6615806615 + 6615806616.

It is an arithmetic number, because the mean of its divisors is an integer number (6615806616).

Almost surely, 2^13231613231 is an apocalyptic number.

13231613231 is a deficient number, since it is larger than the sum of its proper divisors (1).

13231613231 is an equidigital number, since it uses as much as digits as its factorization.

13231613231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 26.

The spelling of 13231613231 in words is "thirteen billion, two hundred thirty-one million, six hundred thirteen thousand, two hundred thirty-one".