310890131 has 2 divisors, whose sum is σ = 310890132. Its totient is φ = 310890130.

The previous prime is 310890091. The next prime is 310890133. The reversal of 310890131 is 131098013.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 310890131 - 2¹⁰ = 310889107 is a prime.

It is a super-2 number, since 2×310890131² = 193305347106394322, which contains 22 as substring.

Together with 310890133, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 310890131.

It is not a weakly prime, because it can be changed into another prime (310890133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155445065 + 155445066.

It is an arithmetic number, because the mean of its divisors is an integer number (155445066).

Almost surely, 2^310890131 is an apocalyptic number.

310890131 is a deficient number, since it is larger than the sum of its proper divisors (1).

310890131 is an equidigital number, since it uses as much as digits as its factorization.

310890131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 310890131 is about 17632.0767636714. The cubic root of 310890131 is about 677.4371022249.

It can be divided in two parts, 3108 and 90131, that added together give a palindrome (93239).

The spelling of 310890131 in words is "three hundred ten million, eight hundred ninety thousand, one hundred thirty-one".