12001312024400 has 30 divisors (see below), whose sum is σ = 28833152139582. Its totient is φ = 4800524809600.

The previous prime is 12001312024397. The next prime is 12001312024411. The reversal of 12001312024400 is 442021310021.

It can be written as a sum of positive squares in 3 ways, for example, as 823309428496 + 11178002595904 = 907364^2 + 3343352^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15001639631 + ... + 15001640430.

Almost surely, 2^{12001312024400} is an apocalyptic number.

12001312024400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12001312024400 is an abundant number, since it is smaller than the sum of its proper divisors (16831840115182).

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

12001312024400 is a wasteful number, since it uses less digits than its factorization.

12001312024400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30003280079 (or 30003280068 counting only the distinct ones).

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

Adding to 12001312024400 its reverse (442021310021), we get a palindrome (12443333334421).

The spelling of 12001312024400 in words is "twelve trillion, one billion, three hundred twelve million, twenty-four thousand, four hundred".