1200023039 has 2 divisors, whose sum is σ = 1200023040. Its totient is φ = 1200023038.

The previous prime is 1200023023. The next prime is 1200023053. The reversal of 1200023039 is 9303200021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1200023039 - 2⁴ = 1200023023 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1200023039.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1200023009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600011519 + 600011520.

It is an arithmetic number, because the mean of its divisors is an integer number (600011520).

Almost surely, 2^1200023039 is an apocalyptic number.

1200023039 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200023039 is an equidigital number, since it uses as much as digits as its factorization.

1200023039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 1200023039 is about 34641.3486891027. The cubic root of 1200023039 is about 1062.6653698587.

The spelling of 1200023039 in words is "one billion, two hundred million, twenty-three thousand, thirty-nine".