123230039 has 2 divisors, whose sum is σ = 123230040. Its totient is φ = 123230038.

The previous prime is 123230027. The next prime is 123230047. The reversal of 123230039 is 930032321.

It is a strong prime.

It is an emirp because it is prime and its reverse (930032321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123230039 - 2²⁰ = 122181463 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 123229996 and 123230023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123230069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61615019 + 61615020.

It is an arithmetic number, because the mean of its divisors is an integer number (61615020).

Almost surely, 2^123230039 is an apocalyptic number.

123230039 is a deficient number, since it is larger than the sum of its proper divisors (1).

123230039 is an equidigital number, since it uses as much as digits as its factorization.

123230039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 123230039 is about 11100.9026209584. The cubic root of 123230039 is about 497.6288248325.

The spelling of 123230039 in words is "one hundred twenty-three million, two hundred thirty thousand, thirty-nine".