123223040328391 has 2 divisors, whose sum is σ = 123223040328392. Its totient is φ = 123223040328390.

The previous prime is 123223040328299. The next prime is 123223040328407. The reversal of 123223040328391 is 193823040322321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123223040328391 - 2⁹ = 123223040327879 is a prime.

It is a super-3 number, since 3×123223040328391³ (a number of 43 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123223040328991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61611520164195 + 61611520164196.

It is an arithmetic number, because the mean of its divisors is an integer number (61611520164196).

Almost surely, 2^{123223040328391} is an apocalyptic number.

123223040328391 is a deficient number, since it is larger than the sum of its proper divisors (1).

123223040328391 is an equidigital number, since it uses as much as digits as its factorization.

123223040328391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 373248, while the sum is 43.

The spelling of 123223040328391 in words is "one hundred twenty-three trillion, two hundred twenty-three billion, forty million, three hundred twenty-eight thousand, three hundred ninety-one".