12131515022304 has 24 divisors (see below), whose sum is σ = 31845226933800. Its totient is φ = 4043838340736.

The previous prime is 12131515022303. The next prime is 12131515022323. The reversal of 12131515022304 is 40322051513121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12131515022303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63184973979 + ... + 63184974170.

It is an arithmetic number, because the mean of its divisors is an integer number (1326884455575).

Almost surely, 2^{12131515022304} is an apocalyptic number.

It is an amenable number.

12131515022304 is an abundant number, since it is smaller than the sum of its proper divisors (19713711911496).

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

12131515022304 is a wasteful number, since it uses less digits than its factorization.

12131515022304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126369948162 (or 126369948154 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 12131515022304 its reverse (40322051513121), we get a palindrome (52453566535425).

The spelling of 12131515022304 in words is "twelve trillion, one hundred thirty-one billion, five hundred fifteen million, twenty-two thousand, three hundred four".