121189415313 has 4 divisors (see below), whose sum is σ = 161585887088. Its totient is φ = 80792943540.

The previous prime is 121189415297. The next prime is 121189415341. The reversal of 121189415313 is 313514981121.

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 121189415313 - 2⁴ = 121189415297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121189415513) 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, 20198235883 + ... + 20198235888.

It is an arithmetic number, because the mean of its divisors is an integer number (40396471772).

Almost surely, 2^121189415313 is an apocalyptic number.

It is an amenable number.

121189415313 is a deficient number, since it is larger than the sum of its proper divisors (40396471775).

121189415313 is an equidigital number, since it uses as much as digits as its factorization.

121189415313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40396471774.

The product of its digits is 25920, while the sum is 39.

The spelling of 121189415313 in words is "one hundred twenty-one billion, one hundred eighty-nine million, four hundred fifteen thousand, three hundred thirteen".