12040431100 has 36 divisors (see below), whose sum is σ = 27502883800. Its totient is φ = 4562688960.

The previous prime is 12040431083. The next prime is 12040431107. The reversal of 12040431100 is 113404021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12040431107) 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, 3166635 + ... + 3170434.

Almost surely, 2^12040431100 is an apocalyptic number.

12040431100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12040431100 is an abundant number, since it is smaller than the sum of its proper divisors (15462452700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12040431100 is a wasteful number, since it uses less digits than its factorization.

12040431100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6337102 (or 6337095 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12040431100 its reverse (113404021), we get a palindrome (12153835121).

The spelling of 12040431100 in words is "twelve billion, forty million, four hundred thirty-one thousand, one hundred".