123320202079 has 2 divisors, whose sum is σ = 123320202080. Its totient is φ = 123320202078.

The previous prime is 123320202073. The next prime is 123320202139. The reversal of 123320202079 is 970202023321.

It is a weak prime.

It is an emirp because it is prime and its reverse (970202023321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123320202079 - 2⁹ = 123320201567 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123320202079.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123320202073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61660101039 + 61660101040.

It is an arithmetic number, because the mean of its divisors is an integer number (61660101040).

Almost surely, 2^123320202079 is an apocalyptic number.

123320202079 is a deficient number, since it is larger than the sum of its proper divisors (1).

123320202079 is an equidigital number, since it uses as much as digits as its factorization.

123320202079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 31.

The spelling of 123320202079 in words is "one hundred twenty-three billion, three hundred twenty million, two hundred two thousand, seventy-nine".