13031131231 has 8 divisors (see below), whose sum is σ = 13223232864. Its totient is φ = 12839397120.

The previous prime is 13031131213. The next prime is 13031131249. The reversal of 13031131231 is 13213113031.

13031131231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13031131213) and next prime (13031131249).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13031131231 - 2⁵ = 13031131199 is a prime.

It is a super-2 number, since 2×13031131231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13031131199 and 13031131208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13031131271) 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 in 7 ways as a sum of consecutive naturals, for example, 20035 + ... + 162676.

It is an arithmetic number, because the mean of its divisors is an integer number (1652904108).

Almost surely, 2^13031131231 is an apocalyptic number.

13031131231 is a deficient number, since it is larger than the sum of its proper divisors (192101633).

13031131231 is an equidigital number, since it uses as much as digits as its factorization.

13031131231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183761.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 13031131231 its reverse (13213113031), we get a palindrome (26244244262).

The spelling of 13031131231 in words is "thirteen billion, thirty-one million, one hundred thirty-one thousand, two hundred thirty-one".