672011131 has 24 divisors (see below), whose sum is σ = 762547520. Its totient is φ = 591338880.

The previous prime is 672011129. The next prime is 672011159. The reversal of 672011131 is 131110276.

It is not a de Polignac number, because 672011131 - 2¹ = 672011129 is a prime.

It is a super-2 number, since 2×672011131² = 903197920375798322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (672011161) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1642855 + ... + 1643263.

Almost surely, 2^672011131 is an apocalyptic number.

672011131 is a deficient number, since it is larger than the sum of its proper divisors (90536389).

672011131 is a wasteful number, since it uses less digits than its factorization.

672011131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835 (or 824 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 672011131 is about 25923.1774865660. The cubic root of 672011131 is about 875.9086641044.

The spelling of 672011131 in words is "six hundred seventy-two million, eleven thousand, one hundred thirty-one".