123002039 has 2 divisors, whose sum is σ = 123002040. Its totient is φ = 123002038.

The previous prime is 123001997. The next prime is 123002041. The reversal of 123002039 is 930200321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123002039 - 2¹² = 122997943 is a prime.

It is a Sophie Germain prime.

Together with 123002041, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123002039.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123002069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61501019 + 61501020.

It is an arithmetic number, because the mean of its divisors is an integer number (61501020).

Almost surely, 2^123002039 is an apocalyptic number.

123002039 is a deficient number, since it is larger than the sum of its proper divisors (1).

123002039 is an equidigital number, since it uses as much as digits as its factorization.

123002039 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 20.

The square root of 123002039 is about 11090.6284312477. The cubic root of 123002039 is about 497.3217313697.

The spelling of 123002039 in words is "one hundred twenty-three million, two thousand, thirty-nine".