131031123319 has 4 divisors (see below), whose sum is σ = 132190690896. Its totient is φ = 129871555744.

The previous prime is 131031123263. The next prime is 131031123343. The reversal of 131031123319 is 913321130131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131031123319 - 2²⁵ = 130997568887 is a prime.

It is a super-2 number, since 2×131031123319² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131031123359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 579783619 + ... + 579783844.

It is an arithmetic number, because the mean of its divisors is an integer number (33047672724).

Almost surely, 2^131031123319 is an apocalyptic number.

131031123319 is a deficient number, since it is larger than the sum of its proper divisors (1159567577).

131031123319 is a wasteful number, since it uses less digits than its factorization.

131031123319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159567576.

The product of its (nonzero) digits is 1458, while the sum is 28.

The spelling of 131031123319 in words is "one hundred thirty-one billion, thirty-one million, one hundred twenty-three thousand, three hundred nineteen".