12401312564 has 24 divisors (see below), whose sum is σ = 21997809120. Its totient is φ = 6116793696.

The previous prime is 12401312563. The next prime is 12401312587. The reversal of 12401312564 is 46521310421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12401312563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16259 + ... + 158325.

It is an arithmetic number, because the mean of its divisors is an integer number (916575380).

Almost surely, 2^12401312564 is an apocalyptic number.

It is an amenable number.

12401312564 is a deficient number, since it is larger than the sum of its proper divisors (9596496556).

12401312564 is a wasteful number, since it uses less digits than its factorization.

12401312564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142367 (or 142365 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 12401312564 its reverse (46521310421), we get a palindrome (58922622985).

The spelling of 12401312564 in words is "twelve billion, four hundred one million, three hundred twelve thousand, five hundred sixty-four".