1323042039 has 16 divisors (see below), whose sum is σ = 2138250240. Its totient is φ = 801843480.

The previous prime is 1323042023. The next prime is 1323042047. The reversal of 1323042039 is 9302403231.

It is a happy number.

1323042039 is a `hidden beast` number, since 1 + 3 + 230 + 420 + 3 + 9 = 666.

It is not a de Polignac number, because 1323042039 - 2⁴ = 1323042023 is a prime.

It is a super-2 number, since 2×1323042039² = 3500880473922555042, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323002039) 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 in 15 ways as a sum of consecutive naturals, for example, 2227047 + ... + 2227640.

It is an arithmetic number, because the mean of its divisors is an integer number (133640640).

Almost surely, 2^1323042039 is an apocalyptic number.

1323042039 is a deficient number, since it is larger than the sum of its proper divisors (815208201).

1323042039 is a wasteful number, since it uses less digits than its factorization.

1323042039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4454707 (or 4454701 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 1323042039 is about 36373.6448407360. The cubic root of 1323042039 is about 1097.8033405143.

The spelling of 1323042039 in words is "one billion, three hundred twenty-three million, forty-two thousand, thirty-nine".