12313404020 has 24 divisors (see below), whose sum is σ = 25866292200. Its totient is φ = 4923810432.

The previous prime is 12313403987. The next prime is 12313404091. The reversal of 12313404020 is 2040431321.

It can be written as a sum of positive squares in 4 ways, for example, as 3092027236 + 9221376784 = 55606^2 + 96028^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 12313403983 and 12313404001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30755 + ... + 159914.

It is an arithmetic number, because the mean of its divisors is an integer number (1077762175).

Almost surely, 2^12313404020 is an apocalyptic number.

12313404020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12313404020 is an abundant number, since it is smaller than the sum of its proper divisors (13552888180).

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

12313404020 is a wasteful number, since it uses less digits than its factorization.

12313404020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193907 (or 193905 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 12313404020 its reverse (2040431321), we get a palindrome (14353835341).

The spelling of 12313404020 in words is "twelve billion, three hundred thirteen million, four hundred four thousand, twenty".