79993000123 has 2 divisors, whose sum is σ = 79993000124. Its totient is φ = 79993000122.

The previous prime is 79993000111. The next prime is 79993000127. The reversal of 79993000123 is 32100039997.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 79993000123 - 2¹⁷ = 79992869051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 79993000123.

It is not a weakly prime, because it can be changed into another prime (79993000127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39996500061 + 39996500062.

It is an arithmetic number, because the mean of its divisors is an integer number (39996500062).

Almost surely, 2^79993000123 is an apocalyptic number.

79993000123 is a deficient number, since it is larger than the sum of its proper divisors (1).

79993000123 is an equidigital number, since it uses as much as digits as its factorization.

79993000123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 91854, while the sum is 43.

The spelling of 79993000123 in words is "seventy-nine billion, nine hundred ninety-three million, one hundred twenty-three", and thus it is an aban number.