123423119 has 2 divisors, whose sum is σ = 123423120. Its totient is φ = 123423118.

The previous prime is 123423067. The next prime is 123423127. The reversal of 123423119 is 911324321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123423119 - 2²⁰ = 122374543 is a prime.

It is a super-2 number, since 2×123423119² = 30466532607376322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123423169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61711559 + 61711560.

It is an arithmetic number, because the mean of its divisors is an integer number (61711560).

Almost surely, 2^123423119 is an apocalyptic number.

123423119 is a deficient number, since it is larger than the sum of its proper divisors (1).

123423119 is an equidigital number, since it uses as much as digits as its factorization.

123423119 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 26.

The square root of 123423119 is about 11109.5958072290. The cubic root of 123423119 is about 497.8885884328. Note that the first 3 decimals are identical.

The spelling of 123423119 in words is "one hundred twenty-three million, four hundred twenty-three thousand, one hundred nineteen".