102315212115 has 32 divisors (see below), whose sum is σ = 166065996096. Its totient is φ = 53786234880.

The previous prime is 102315212101. The next prime is 102315212141. The reversal of 102315212115 is 511212513201.

It is not a de Polignac number, because 102315212115 - 2²² = 102311017811 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 140047 + ... + 473543.

It is an arithmetic number, because the mean of its divisors is an integer number (5189562378).

Almost surely, 2^102315212115 is an apocalyptic number.

102315212115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

102315212115 is a deficient number, since it is larger than the sum of its proper divisors (63750783981).

102315212115 is a wasteful number, since it uses less digits than its factorization.

102315212115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333799.

The product of its (nonzero) digits is 600, while the sum is 24.

Adding to 102315212115 its reverse (511212513201), we get a palindrome (613527725316).

The spelling of 102315212115 in words is "one hundred two billion, three hundred fifteen million, two hundred twelve thousand, one hundred fifteen".