123223040322391 has 2 divisors, whose sum is σ = 123223040322392. Its totient is φ = 123223040322390.

The previous prime is 123223040322337. The next prime is 123223040322407. The reversal of 123223040322391 is 193223040322321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123223040322391 - 2⁹ = 123223040321879 is a prime.

It is a super-3 number, since 3×123223040322391³ (a number of 43 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 123223040322391.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123223040328391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61611520161195 + 61611520161196.

It is an arithmetic number, because the mean of its divisors is an integer number (61611520161196).

Almost surely, 2^{123223040322391} is an apocalyptic number.

123223040322391 is a deficient number, since it is larger than the sum of its proper divisors (1).

123223040322391 is an equidigital number, since it uses as much as digits as its factorization.

123223040322391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 37.

The spelling of 123223040322391 in words is "one hundred twenty-three trillion, two hundred twenty-three billion, forty million, three hundred twenty-two thousand, three hundred ninety-one".