12040100400 has 120 divisors (see below), whose sum is σ = 40837256784. Its totient is φ = 3021824000.

The previous prime is 12040100399. The next prime is 12040100453. The reversal of 12040100400 is 400104021.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 274701 + ... + 315500.

Almost surely, 2^12040100400 is an apocalyptic number.

12040100400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12040100400 is an abundant number, since it is smaller than the sum of its proper divisors (28797156384).

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

12040100400 is a wasteful number, since it uses less digits than its factorization.

12040100400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590239 (or 590228 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 12040100400 its reverse (400104021), we get a palindrome (12440204421).

The spelling of 12040100400 in words is "twelve billion, forty million, one hundred thousand, four hundred".