100115234515 has 16 divisors (see below), whose sum is σ = 120430994400. Its totient is φ = 79897289472.

The previous prime is 100115234507. The next prime is 100115234519. The reversal of 100115234515 is 515432511001.

It is a cyclic number.

It is not a de Polignac number, because 100115234515 - 2³ = 100115234507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100115234519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3460249 + ... + 3489061.

It is an arithmetic number, because the mean of its divisors is an integer number (7526937150).

Almost surely, 2^100115234515 is an apocalyptic number.

100115234515 is a deficient number, since it is larger than the sum of its proper divisors (20315759885).

100115234515 is an equidigital number, since it uses as much as digits as its factorization.

100115234515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30486.

The product of its (nonzero) digits is 3000, while the sum is 28.

Adding to 100115234515 its reverse (515432511001), we get a palindrome (615547745516).

The spelling of 100115234515 in words is "one hundred billion, one hundred fifteen million, two hundred thirty-four thousand, five hundred fifteen".