123114412391 has 2 divisors, whose sum is σ = 123114412392. Its totient is φ = 123114412390.

The previous prime is 123114412363. The next prime is 123114412451. The reversal of 123114412391 is 193214411321.

It is a weak prime.

It is an emirp because it is prime and its reverse (193214411321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123114412391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123114412321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61557206195 + 61557206196.

It is an arithmetic number, because the mean of its divisors is an integer number (61557206196).

Almost surely, 2^123114412391 is an apocalyptic number.

123114412391 is a deficient number, since it is larger than the sum of its proper divisors (1).

123114412391 is an equidigital number, since it uses as much as digits as its factorization.

123114412391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 32.

The spelling of 123114412391 in words is "one hundred twenty-three billion, one hundred fourteen million, four hundred twelve thousand, three hundred ninety-one".