123879361231 has 2 divisors, whose sum is σ = 123879361232. Its totient is φ = 123879361230.

The previous prime is 123879361157. The next prime is 123879361253. The reversal of 123879361231 is 132163978321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123879361231 - 2¹¹ = 123879359183 is a prime.

It is a super-2 number, since 2×123879361231² (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 (123879362231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61939680615 + 61939680616.

It is an arithmetic number, because the mean of its divisors is an integer number (61939680616).

Almost surely, 2^123879361231 is an apocalyptic number.

123879361231 is a deficient number, since it is larger than the sum of its proper divisors (1).

123879361231 is an equidigital number, since it uses as much as digits as its factorization.

123879361231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 46.

The spelling of 123879361231 in words is "one hundred twenty-three billion, eight hundred seventy-nine million, three hundred sixty-one thousand, two hundred thirty-one".