79343020121 has 16 divisors (see below), whose sum is σ = 83222028288. Its totient is φ = 75500317200.

The previous prime is 79343020117. The next prime is 79343020123. The reversal of 79343020121 is 12102034397.

It is a cyclic number.

It is not a de Polignac number, because 79343020121 - 2² = 79343020117 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79343020123) 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, 7674926 + ... + 7685256.

It is an arithmetic number, because the mean of its divisors is an integer number (5201376768).

Almost surely, 2^79343020121 is an apocalyptic number.

It is an amenable number.

79343020121 is a deficient number, since it is larger than the sum of its proper divisors (3879008167).

79343020121 is a wasteful number, since it uses less digits than its factorization.

79343020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12052.

The product of its (nonzero) digits is 9072, while the sum is 32.

The spelling of 79343020121 in words is "seventy-nine billion, three hundred forty-three million, twenty thousand, one hundred twenty-one".