3121231132 has 12 divisors (see below), whose sum is σ = 5512266760. Its totient is φ = 1546297776.

The previous prime is 3121231129. The next prime is 3121231171. The reversal of 3121231132 is 2311321213.

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, 3578958 + ... + 3579829.

Almost surely, 2^3121231132 is an apocalyptic number.

It is an amenable number.

3121231132 is a deficient number, since it is larger than the sum of its proper divisors (2391035628).

3121231132 is a wasteful number, since it uses less digits than its factorization.

3121231132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7158900 (or 7158898 counting only the distinct ones).

The product of its digits is 216, while the sum is 19.

The square root of 3121231132 is about 55867.9794873593. The cubic root of 3121231132 is about 1461.4208866995.

Adding to 3121231132 its reverse (2311321213), we get a palindrome (5432552345).

The spelling of 3121231132 in words is "three billion, one hundred twenty-one million, two hundred thirty-one thousand, one hundred thirty-two".