131115312115539 has 8 divisors (see below), whose sum is σ = 175442552867472. Its totient is φ = 87099139720320.

The previous prime is 131115312115483. The next prime is 131115312115549. The reversal of 131115312115539 is 935511213511131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131115312115539 - 2¹¹ = 131115312113491 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131115312115539.

It is not an unprimeable number, because it can be changed into a prime (131115312115549) 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, 77767088194 + ... + 77767089879.

It is an arithmetic number, because the mean of its divisors is an integer number (21930319108434).

Almost surely, 2^{131115312115539} is an apocalyptic number.

131115312115539 is a deficient number, since it is larger than the sum of its proper divisors (44327240751933).

131115312115539 is a wasteful number, since it uses less digits than its factorization.

131115312115539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155534178357.

The product of its digits is 60750, while the sum is 42.

The spelling of 131115312115539 in words is "one hundred thirty-one trillion, one hundred fifteen billion, three hundred twelve million, one hundred fifteen thousand, five hundred thirty-nine".