3131131012 has 12 divisors (see below), whose sum is σ = 5527971036. Its totient is φ = 1551710720.

The previous prime is 3131131007. The next prime is 3131131039. The reversal of 3131131012 is 2101311313.

It can be written as a sum of positive squares in 2 ways, for example, as 1286943876 + 1844187136 = 35874^2 + 42944^2 .

It is a super-3 number, since 3×3131131012³ (a number of 29 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3463189 + ... + 3464092.

It is an arithmetic number, because the mean of its divisors is an integer number (460664253).

Almost surely, 2^3131131012 is an apocalyptic number.

It is an amenable number.

3131131012 is a deficient number, since it is larger than the sum of its proper divisors (2396840024).

3131131012 is a wasteful number, since it uses less digits than its factorization.

3131131012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6927398 (or 6927396 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 3131131012 is about 55956.5100055391. The cubic root of 3131131012 is about 1462.9643611959.

Adding to 3131131012 its reverse (2101311313), we get a palindrome (5232442325).

The spelling of 3131131012 in words is "three billion, one hundred thirty-one million, one hundred thirty-one thousand, twelve".