23012121079 has 2 divisors, whose sum is σ = 23012121080. Its totient is φ = 23012121078.

The previous prime is 23012121071. The next prime is 23012121133. The reversal of 23012121079 is 97012121032.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23012121079 - 2³ = 23012121071 is a prime.

It is a super-2 number, since 2×23012121079² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23012121071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11506060539 + 11506060540.

It is an arithmetic number, because the mean of its divisors is an integer number (11506060540).

Almost surely, 2^23012121079 is an apocalyptic number.

23012121079 is a deficient number, since it is larger than the sum of its proper divisors (1).

23012121079 is an equidigital number, since it uses as much as digits as its factorization.

23012121079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 28.

The spelling of 23012121079 in words is "twenty-three billion, twelve million, one hundred twenty-one thousand, seventy-nine".