123339128 has 32 divisors (see below), whose sum is σ = 252713520. Its totient is φ = 55968000.

The previous prime is 123339113. The next prime is 123339143. The reversal of 123339128 is 821933321.

It is an interprime number because it is at equal distance from previous prime (123339113) and next prime (123339143).

It is a junction number, because it is equal to n+sod(n) for n = 123339094 and 123339103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92708 + ... + 94028.

Almost surely, 2^123339128 is an apocalyptic number.

It is an amenable number.

123339128 is an abundant number, since it is smaller than the sum of its proper divisors (129374392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123339128 is a wasteful number, since it uses less digits than its factorization.

123339128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2399 (or 2395 counting only the distinct ones).

The product of its digits is 7776, while the sum is 32.

The square root of 123339128 is about 11105.8150533853. The cubic root of 123339128 is about 497.7756229682.

The spelling of 123339128 in words is "one hundred twenty-three million, three hundred thirty-nine thousand, one hundred twenty-eight".