123012319 has 2 divisors, whose sum is σ = 123012320. Its totient is φ = 123012318.

The previous prime is 123012317. The next prime is 123012343. The reversal of 123012319 is 913210321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123012319 - 2¹ = 123012317 is a prime.

It is a super-2 number, since 2×123012319² = 30264061251515522, which contains 22 as substring.

Together with 123012317, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 123012319.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123012313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61506159 + 61506160.

It is an arithmetic number, because the mean of its divisors is an integer number (61506160).

Almost surely, 2^123012319 is an apocalyptic number.

123012319 is a deficient number, since it is larger than the sum of its proper divisors (1).

123012319 is an equidigital number, since it uses as much as digits as its factorization.

123012319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 123012319 is about 11091.0918759156. The cubic root of 123012319 is about 497.3355856793.

The spelling of 123012319 in words is "one hundred twenty-three million, twelve thousand, three hundred nineteen".