115013420121 has 4 divisors (see below), whose sum is σ = 153351226832. Its totient is φ = 76675613412.

The previous prime is 115013420113. The next prime is 115013420149. The reversal of 115013420121 is 121024310511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 115013420121 - 2³ = 115013420113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115013420111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19168903351 + ... + 19168903356.

It is an arithmetic number, because the mean of its divisors is an integer number (38337806708).

Almost surely, 2^115013420121 is an apocalyptic number.

It is an amenable number.

115013420121 is a deficient number, since it is larger than the sum of its proper divisors (38337806711).

115013420121 is an equidigital number, since it uses as much as digits as its factorization.

115013420121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38337806710.

The product of its (nonzero) digits is 240, while the sum is 21.

Adding to 115013420121 its reverse (121024310511), we get a palindrome (236037730632).

The spelling of 115013420121 in words is "one hundred fifteen billion, thirteen million, four hundred twenty thousand, one hundred twenty-one".