123200040079 has 2 divisors, whose sum is σ = 123200040080. Its totient is φ = 123200040078.

The previous prime is 123200039993. The next prime is 123200040167. The reversal of 123200040079 is 970040002321.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123200040079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123200040779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61600020039 + 61600020040.

It is an arithmetic number, because the mean of its divisors is an integer number (61600020040).

Almost surely, 2^123200040079 is an apocalyptic number.

123200040079 is a deficient number, since it is larger than the sum of its proper divisors (1).

123200040079 is an equidigital number, since it uses as much as digits as its factorization.

123200040079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 28.

The spelling of 123200040079 in words is "one hundred twenty-three billion, two hundred million, forty thousand, seventy-nine".