3131133125 has 20 divisors (see below), whose sum is σ = 3918330108. Its totient is φ = 2501280000.

The previous prime is 3131133113. The next prime is 3131133149. The reversal of 3131133125 is 5213311313.

It can be written as a sum of positive squares in 10 ways, for example, as 2365946881 + 765186244 = 48641^2 + 27662^2 .

It is not a de Polignac number, because 3131133125 - 2⁸ = 3131132869 is a prime.

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 3131133125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 479885 + ... + 486365.

Almost surely, 2^3131133125 is an apocalyptic number.

It is an amenable number.

3131133125 is a deficient number, since it is larger than the sum of its proper divisors (787196983).

3131133125 is an frugal number, since it uses more digits than its factorization.

3131133125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7274 (or 7259 counting only the distinct ones).

The product of its digits is 810, while the sum is 23.

The square root of 3131133125 is about 55956.5288862703. The cubic root of 3131133125 is about 1462.9646902828.

Adding to 3131133125 its reverse (5213311313), we get a palindrome (8344444438).

The spelling of 3131133125 in words is "three billion, one hundred thirty-one million, one hundred thirty-three thousand, one hundred twenty-five".