12100131 has 32 divisors (see below), whose sum is σ = 19136000. Its totient is φ = 7534944.

The previous prime is 12100111. The next prime is 12100159. The reversal of 12100131 is 13100121.

It is not a de Polignac number, because 12100131 - 2⁷ = 12100003 is a prime.

It is a super-2 number, since 2×12100131² = 292826340434322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52725 + ... + 52953.

It is an arithmetic number, because the mean of its divisors is an integer number (598000).

Almost surely, 2^12100131 is an apocalyptic number.

12100131 is a deficient number, since it is larger than the sum of its proper divisors (7035869).

12100131 is a wasteful number, since it uses less digits than its factorization.

12100131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360 (or 354 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 12100131 is about 3478.5242560603. The cubic root of 12100131 is about 229.5778709647.

Adding to 12100131 its reverse (13100121), we get a palindrome (25200252).

The spelling of 12100131 in words is "twelve million, one hundred thousand, one hundred thirty-one".