3131133412 has 12 divisors (see below), whose sum is σ = 5977618416. Its totient is φ = 1423242440.

The previous prime is 3131133409. The next prime is 3131133431. The reversal of 3131133412 is 2143311313.

3131133412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 35581018 + ... + 35581105.

It is an arithmetic number, because the mean of its divisors is an integer number (498134868).

Almost surely, 2^3131133412 is an apocalyptic number.

It is an amenable number.

3131133412 is a deficient number, since it is larger than the sum of its proper divisors (2846485004).

3131133412 is a wasteful number, since it uses less digits than its factorization.

3131133412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71162138 (or 71162136 counting only the distinct ones).

The product of its digits is 648, while the sum is 22.

The square root of 3131133412 is about 55956.5314507610. The cubic root of 3131133412 is about 1462.9647349813.

Adding to 3131133412 its reverse (2143311313), we get a palindrome (5274444725).

The spelling of 3131133412 in words is "three billion, one hundred thirty-one million, one hundred thirty-three thousand, four hundred twelve".