12312303404 has 24 divisors (see below), whose sum is σ = 21856843008. Its totient is φ = 6067545680.

The previous prime is 12312303389. The next prime is 12312303427. The reversal of 12312303404 is 40430321321.

It is a super-2 number, since 2×12312303404² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12312303404.

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, 1457537 + ... + 1465959.

It is an arithmetic number, because the mean of its divisors is an integer number (910701792).

Almost surely, 2^12312303404 is an apocalyptic number.

It is an amenable number.

12312303404 is a deficient number, since it is larger than the sum of its proper divisors (9544539604).

12312303404 is a wasteful number, since it uses less digits than its factorization.

12312303404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13645 (or 13643 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 12312303404 its reverse (40430321321), we get a palindrome (52742624725).

The spelling of 12312303404 in words is "twelve billion, three hundred twelve million, three hundred three thousand, four hundred four".