3121132131 has 48 divisors (see below), whose sum is σ = 5087025216. Its totient is φ = 1829634048.

The previous prime is 3121132127. The next prime is 3121132141. The reversal of 3121132131 is 1312311213.

3121132131 is a `hidden beast` number, since 312 + 1 + 1 + 321 + 31 = 666.

It is not a de Polignac number, because 3121132131 - 2² = 3121132127 is a prime.

It is a super-2 number, since 2×3121132131² = 19482931558321202322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3121132121) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 689331 + ... + 693843.

It is an arithmetic number, because the mean of its divisors is an integer number (105979692).

Almost surely, 2^3121132131 is an apocalyptic number.

3121132131 is a deficient number, since it is larger than the sum of its proper divisors (1965893085).

3121132131 is a wasteful number, since it uses less digits than its factorization.

3121132131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4812 (or 4809 counting only the distinct ones).

The product of its digits is 108, while the sum is 18.

The square root of 3121132131 is about 55867.0934540182. The cubic root of 3121132131 is about 1461.4054351407.

Adding to 3121132131 its reverse (1312311213), we get a palindrome (4433443344).

The spelling of 3121132131 in words is "three billion, one hundred twenty-one million, one hundred thirty-two thousand, one hundred thirty-one".