15131233420400 has 30 divisors (see below), whose sum is σ = 36352788293472. Its totient is φ = 6052493368000.

The previous prime is 15131233420337. The next prime is 15131233420409. The reversal of 15131233420400 is 402433213151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15131233420409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18914041376 + ... + 18914042175.

Almost surely, 2^{15131233420400} is an apocalyptic number.

15131233420400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15131233420400 is an abundant number, since it is smaller than the sum of its proper divisors (21221554873072).

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

15131233420400 is a wasteful number, since it uses less digits than its factorization.

15131233420400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37828083569 (or 37828083558 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 15131233420400 its reverse (402433213151), we get a palindrome (15533666633551).

The spelling of 15131233420400 in words is "fifteen trillion, one hundred thirty-one billion, two hundred thirty-three million, four hundred twenty thousand, four hundred".