123818273771 has 2 divisors, whose sum is σ = 123818273772. Its totient is φ = 123818273770.

The previous prime is 123818273743. The next prime is 123818273783. The reversal of 123818273771 is 177372818321.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123818273771 is a prime.

It is not a weakly prime, because it can be changed into another prime (123818273701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61909136885 + 61909136886.

It is an arithmetic number, because the mean of its divisors is an integer number (61909136886).

Almost surely, 2^123818273771 is an apocalyptic number.

123818273771 is a deficient number, since it is larger than the sum of its proper divisors (1).

123818273771 is an equidigital number, since it uses as much as digits as its factorization.

123818273771 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 790272, while the sum is 50.

The spelling of 123818273771 in words is "one hundred twenty-three billion, eight hundred eighteen million, two hundred seventy-three thousand, seven hundred seventy-one".