131115312115504 has 20 divisors (see below), whose sum is σ = 267406228657240. Its totient is φ = 62107253107200.

The previous prime is 131115312115483. The next prime is 131115312115549. The reversal of 131115312115504 is 405511213511131.

It is a super-2 number, since 2×131115312115504² (a number of 29 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 131115312115504.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215650184097 + ... + 215650184704.

It is an arithmetic number, because the mean of its divisors is an integer number (13370311432862).

Almost surely, 2^{131115312115504} is an apocalyptic number.

It is an amenable number.

131115312115504 is an abundant number, since it is smaller than the sum of its proper divisors (136290916541736).

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

131115312115504 is a wasteful number, since it uses less digits than its factorization.

131115312115504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431300368828 (or 431300368822 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 34.

Adding to 131115312115504 its reverse (405511213511131), we get a palindrome (536626525626635).

The spelling of 131115312115504 in words is "one hundred thirty-one trillion, one hundred fifteen billion, three hundred twelve million, one hundred fifteen thousand, five hundred four".