121162131 has 12 divisors (see below), whose sum is σ = 175478680. Its totient is φ = 80559360.

The previous prime is 121162127. The next prime is 121162147. The reversal of 121162131 is 131261121.

121162131 is a `hidden beast` number, since 1 + 2 + 11 + 621 + 31 = 666.

It is not a de Polignac number, because 121162131 - 2² = 121162127 is a prime.

It is a super-2 number, since 2×121162131² = 29360523976922322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121162231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14350 + ... + 21171.

Almost surely, 2^121162131 is an apocalyptic number.

121162131 is a deficient number, since it is larger than the sum of its proper divisors (54316549).

121162131 is a wasteful number, since it uses less digits than its factorization.

121162131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35906 (or 35903 counting only the distinct ones).

The product of its digits is 72, while the sum is 18.

The square root of 121162131 is about 11007.3671238857. The cubic root of 121162131 is about 494.8295587054.

The spelling of 121162131 in words is "one hundred twenty-one million, one hundred sixty-two thousand, one hundred thirty-one".