1002323131 has 4 divisors (see below), whose sum is σ = 1055077000. Its totient is φ = 949569264.

The previous prime is 1002323123. The next prime is 1002323167. The reversal of 1002323131 is 1313232001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1002323131 - 2³ = 1002323123 is a prime.

It is a super-2 number, since 2×1002323131² = 2009303317875286322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002323191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26376906 + ... + 26376943.

It is an arithmetic number, because the mean of its divisors is an integer number (263769250).

Almost surely, 2^1002323131 is an apocalyptic number.

1002323131 is a deficient number, since it is larger than the sum of its proper divisors (52753869).

1002323131 is an equidigital number, since it uses as much as digits as its factorization.

1002323131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52753868.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1002323131 is about 31659.4872194734. The cubic root of 1002323131 is about 1000.7737781130.

Adding to 1002323131 its reverse (1313232001), we get a palindrome (2315555132).

The spelling of 1002323131 in words is "one billion, two million, three hundred twenty-three thousand, one hundred thirty-one".