123360712991 has 2 divisors, whose sum is σ = 123360712992. Its totient is φ = 123360712990.

The previous prime is 123360712967. The next prime is 123360713041. The reversal of 123360712991 is 199217063321.

It is a weak prime.

It is an emirp because it is prime and its reverse (199217063321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123360712991 - 2¹⁴ = 123360696607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123360712921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61680356495 + 61680356496.

It is an arithmetic number, because the mean of its divisors is an integer number (61680356496).

Almost surely, 2^123360712991 is an apocalyptic number.

123360712991 is a deficient number, since it is larger than the sum of its proper divisors (1).

123360712991 is an equidigital number, since it uses as much as digits as its factorization.

123360712991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 122472, while the sum is 44.

The spelling of 123360712991 in words is "one hundred twenty-three billion, three hundred sixty million, seven hundred twelve thousand, nine hundred ninety-one".