12310100400 has 120 divisors (see below), whose sum is σ = 42466743760. Its totient is φ = 3030174720.

The previous prime is 12310100377. The next prime is 12310100447. The reversal of 12310100400 is 400101321.

It is a happy number.

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, 378955 + ... + 410154.

Almost surely, 2^12310100400 is an apocalyptic number.

12310100400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12310100400 is an abundant number, since it is smaller than the sum of its proper divisors (30156643360).

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

12310100400 is a wasteful number, since it uses less digits than its factorization.

12310100400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789143 (or 789132 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 12310100400 its reverse (400101321), we get a palindrome (12710201721).

The spelling of 12310100400 in words is "twelve billion, three hundred ten million, one hundred thousand, four hundred".