79031223122111 has 16 divisors (see below), whose sum is σ = 85188176604384. Its totient is φ = 72885387838464.

The previous prime is 79031223122101. The next prime is 79031223122191. The reversal of 79031223122111 is 11122132213097.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79031223122111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79031223122101) 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, 66476375 + ... + 67654791.

It is an arithmetic number, because the mean of its divisors is an integer number (5324261037774).

Almost surely, 2^{79031223122111} is an apocalyptic number.

79031223122111 is a deficient number, since it is larger than the sum of its proper divisors (6156953482273).

79031223122111 is a wasteful number, since it uses less digits than its factorization.

79031223122111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183130.

The product of its (nonzero) digits is 9072, while the sum is 35.

The spelling of 79031223122111 in words is "seventy-nine trillion, thirty-one billion, two hundred twenty-three million, one hundred twenty-two thousand, one hundred eleven".