13231123031 has 12 divisors (see below), whose sum is σ = 15394725072. Its totient is φ = 11338443648.

The previous prime is 13231122977. The next prime is 13231123049. The reversal of 13231123031 is 13032113231.

13231123031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13231123031 - 2¹⁰ = 13231122007 is a prime.

It is a super-2 number, since 2×13231123031² (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 = 13231122994 and 13231123012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13231123231) 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 11 ways as a sum of consecutive naturals, for example, 212711 + ... + 267783.

It is an arithmetic number, because the mean of its divisors is an integer number (1282893756).

Almost surely, 2^13231123031 is an apocalyptic number.

13231123031 is a deficient number, since it is larger than the sum of its proper divisors (2163602041).

13231123031 is an equidigital number, since it uses as much as digits as its factorization.

13231123031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59990 (or 59983 counting only the distinct ones).

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

Adding to 13231123031 its reverse (13032113231), we get a palindrome (26263236262).

The spelling of 13231123031 in words is "thirteen billion, two hundred thirty-one million, one hundred twenty-three thousand, thirty-one".