123144319 has 2 divisors, whose sum is σ = 123144320. Its totient is φ = 123144318.

The previous prime is 123144271. The next prime is 123144383. The reversal of 123144319 is 913441321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123144319 - 2¹⁵ = 123111551 is a prime.

It is a super-2 number, since 2×123144319² = 30329046603947522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103144319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61572159 + 61572160.

It is an arithmetic number, because the mean of its divisors is an integer number (61572160).

Almost surely, 2^123144319 is an apocalyptic number.

123144319 is a deficient number, since it is larger than the sum of its proper divisors (1).

123144319 is an equidigital number, since it uses as much as digits as its factorization.

123144319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 28.

The square root of 123144319 is about 11097.0410019969. The cubic root of 123144319 is about 497.5134129360.

The spelling of 123144319 in words is "one hundred twenty-three million, one hundred forty-four thousand, three hundred nineteen".