3131204212 has 12 divisors (see below), whose sum is σ = 5480157060. Its totient is φ = 1565445056.

The previous prime is 3131204147. The next prime is 3131204221. The reversal of 3131204212 is 2124021313.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 70459236 + 3060744976 = 8394^2 + 55324^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3131204212.

It is a congruent number.

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, 13464 + ... + 80272.

It is an arithmetic number, because the mean of its divisors is an integer number (456679755).

Almost surely, 2^3131204212 is an apocalyptic number.

It is an amenable number.

3131204212 is a deficient number, since it is larger than the sum of its proper divisors (2348952848).

3131204212 is a wasteful number, since it uses less digits than its factorization.

3131204212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78530 (or 78528 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 3131204212 is about 55957.1640811076. The cubic root of 3131204212 is about 1462.9757615660.

Adding to 3131204212 its reverse (2124021313), we get a palindrome (5255225525).

The spelling of 3131204212 in words is "three billion, one hundred thirty-one million, two hundred four thousand, two hundred twelve".