12431224100 has 36 divisors (see below), whose sum is σ = 27905961300. Its totient is φ = 4801023360.

The previous prime is 12431224097. The next prime is 12431224139. The reversal of 12431224100 is 142213421.

It can be written as a sum of positive squares in 6 ways, for example, as 2816637184 + 9614586916 = 53072^2 + 98054^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2140415 + ... + 2146214.

Almost surely, 2^12431224100 is an apocalyptic number.

12431224100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12431224100 is an abundant number, since it is smaller than the sum of its proper divisors (15474737200).

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

12431224100 is a wasteful number, since it uses less digits than its factorization.

12431224100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4286672 (or 4286665 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12431224100 its reverse (142213421), we get a palindrome (12573437521).

The spelling of 12431224100 in words is "twelve billion, four hundred thirty-one million, two hundred twenty-four thousand, one hundred".