1002004031 has 8 divisors (see below), whose sum is σ = 1145423904. Its totient is φ = 858653280.

The previous prime is 1002004019. The next prime is 1002004049. The reversal of 1002004031 is 1304002001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1002004031 - 2⁶ = 1002003967 is a prime.

It is a super-2 number, since 2×1002004031² = 2008024156280497922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002004831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18821 + ... + 48561.

It is an arithmetic number, because the mean of its divisors is an integer number (143177988).

Almost surely, 2^1002004031 is an apocalyptic number.

1002004031 is a deficient number, since it is larger than the sum of its proper divisors (143419873).

1002004031 is an equidigital number, since it uses as much as digits as its factorization.

1002004031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34561.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1002004031 is about 31654.4472546908. The cubic root of 1002004031 is about 1000.6675645917.

Adding to 1002004031 its reverse (1304002001), we get a palindrome (2306006032).

The spelling of 1002004031 in words is "one billion, two million, four thousand, thirty-one".