3131133989 has 2 divisors, whose sum is σ = 3131133990. Its totient is φ = 3131133988.

The previous prime is 3131133979. The next prime is 3131134021. The reversal of 3131133989 is 9893311313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2080272100 + 1050861889 = 45610^2 + 32417^2 .

It is a cyclic number.

It is not a de Polignac number, because 3131133989 - 2²⁸ = 2862698533 is a prime.

It is a super-3 number, since 3×3131133989³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3131133979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1565566994 + 1565566995.

It is an arithmetic number, because the mean of its divisors is an integer number (1565566995).

Almost surely, 2^3131133989 is an apocalyptic number.

It is an amenable number.

3131133989 is a deficient number, since it is larger than the sum of its proper divisors (1).

3131133989 is an equidigital number, since it uses as much as digits as its factorization.

3131133989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52488, while the sum is 41.

The square root of 3131133989 is about 55956.5366065485. The cubic root of 3131133989 is about 1462.9648248456.

The spelling of 3131133989 in words is "three billion, one hundred thirty-one million, one hundred thirty-three thousand, nine hundred eighty-nine".