102115215297 has 16 divisors (see below), whose sum is σ = 153539740480. Its totient is φ = 67060737216.

The previous prime is 102115215269. The next prime is 102115215311. The reversal of 102115215297 is 792512511201.

102115215297 is a `hidden beast` number, since 10 + 2 + 115 + 2 + 1 + 529 + 7 = 666.

It is not a de Polignac number, because 102115215297 - 2²⁴ = 102098438081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102115215217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28222408 + ... + 28226025.

It is an arithmetic number, because the mean of its divisors is an integer number (9596233780).

Almost surely, 2^102115215297 is an apocalyptic number.

It is an amenable number.

102115215297 is a deficient number, since it is larger than the sum of its proper divisors (51424525183).

102115215297 is an equidigital number, since it uses as much as digits as its factorization.

102115215297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56448509 (or 56448503 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 36.

Adding to 102115215297 its reverse (792512511201), we get a palindrome (894627726498).

The spelling of 102115215297 in words is "one hundred two billion, one hundred fifteen million, two hundred fifteen thousand, two hundred ninety-seven".