123112129967 has 2 divisors, whose sum is σ = 123112129968. Its totient is φ = 123112129966.

The previous prime is 123112129939. The next prime is 123112130069. The reversal of 123112129967 is 769921211321.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123112129967 is a prime.

It is a super-2 number, since 2×123112129967² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123112129937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61556064983 + 61556064984.

It is an arithmetic number, because the mean of its divisors is an integer number (61556064984).

Almost surely, 2^123112129967 is an apocalyptic number.

123112129967 is a deficient number, since it is larger than the sum of its proper divisors (1).

123112129967 is an equidigital number, since it uses as much as digits as its factorization.

123112129967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648, while the sum is 44.

The spelling of 123112129967 in words is "one hundred twenty-three billion, one hundred twelve million, one hundred twenty-nine thousand, nine hundred sixty-seven".