115312112015 has 8 divisors (see below), whose sum is σ = 138388422240. Its totient is φ = 92240431072.

The previous prime is 115312111991. The next prime is 115312112023. The reversal of 115312112015 is 510211213511.

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

It is a cyclic number.

It is not a de Polignac number, because 115312112015 - 2¹² = 115312107919 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1102280 + ... + 1202349.

It is an arithmetic number, because the mean of its divisors is an integer number (17298552780).

Almost surely, 2^115312112015 is an apocalyptic number.

115312112015 is a deficient number, since it is larger than the sum of its proper divisors (23076310225).

115312112015 is a wasteful number, since it uses less digits than its factorization.

115312112015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2314641.

The product of its (nonzero) digits is 300, while the sum is 23.

Adding to 115312112015 its reverse (510211213511), we get a palindrome (625523325526).

The spelling of 115312112015 in words is "one hundred fifteen billion, three hundred twelve million, one hundred twelve thousand, fifteen".