131031119 has 4 divisors (see below), whose sum is σ = 131082744. Its totient is φ = 130979496.

The previous prime is 131031113. The next prime is 131031127. The reversal of 131031119 is 911130131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 911130131 = 127 ⋅7174253.

It is a cyclic number.

It is not a de Polignac number, because 131031119 - 2⁸ = 131030863 is a prime.

It is a super-2 number, since 2×131031119² = 34338308292784322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131031119.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131031113) 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, 21797 + ... + 27150.

It is an arithmetic number, because the mean of its divisors is an integer number (32770686).

Almost surely, 2^131031119 is an apocalyptic number.

131031119 is a deficient number, since it is larger than the sum of its proper divisors (51625).

131031119 is an equidigital number, since it uses as much as digits as its factorization.

131031119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51624.

The product of its (nonzero) digits is 81, while the sum is 20.

The square root of 131031119 is about 11446.8825013625. The cubic root of 131031119 is about 507.9155198245.

The spelling of 131031119 in words is "one hundred thirty-one million, thirty-one thousand, one hundred nineteen".