1002131331 has 8 divisors (see below), whose sum is σ = 1336394064. Its totient is φ = 667978080.

The previous prime is 1002131329. The next prime is 1002131357. The reversal of 1002131331 is 1331312001.

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

It is not a de Polignac number, because 1002131331 - 2¹ = 1002131329 is a prime.

It is a super-2 number, since 2×1002131331² = 2008534409143663122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1002131331.

It is not an unprimeable number, because it can be changed into a prime (1002131381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2880 + ... + 44861.

It is an arithmetic number, because the mean of its divisors is an integer number (167049258).

Almost surely, 2^1002131331 is an apocalyptic number.

1002131331 is a deficient number, since it is larger than the sum of its proper divisors (334262733).

1002131331 is an equidigital number, since it uses as much as digits as its factorization.

1002131331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54741.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 1002131331 is about 31656.4579667404. The cubic root of 1002131331 is about 1000.7099395333.

Adding to 1002131331 its reverse (1331312001), we get a palindrome (2333443332).

The spelling of 1002131331 in words is "one billion, two million, one hundred thirty-one thousand, three hundred thirty-one".