123142000979 has 2 divisors, whose sum is σ = 123142000980. Its totient is φ = 123142000978.

The previous prime is 123142000951. The next prime is 123142000987. The reversal of 123142000979 is 979000241321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123142000979 - 2¹² = 123141996883 is a prime.

It is a super-2 number, since 2×123142000979² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (123142006979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61571000489 + 61571000490.

It is an arithmetic number, because the mean of its divisors is an integer number (61571000490).

Almost surely, 2^123142000979 is an apocalyptic number.

123142000979 is a deficient number, since it is larger than the sum of its proper divisors (1).

123142000979 is an equidigital number, since it uses as much as digits as its factorization.

123142000979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 38.

The spelling of 123142000979 in words is "one hundred twenty-three billion, one hundred forty-two million, nine hundred seventy-nine", and thus it is an aban number.