1002204331313 has 4 divisors (see below), whose sum is σ = 1029290934900. Its totient is φ = 975117727728.

The previous prime is 1002204331301. The next prime is 1002204331343. The reversal of 1002204331313 is 3131334022001.

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

It can be written as a sum of positive squares in 2 ways, for example, as 413695948864 + 588508382449 = 643192^2 + 767143^2 .

It is a cyclic number.

It is not a de Polignac number, because 1002204331313 - 2¹⁸ = 1002204069169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002204331343) 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, 13543301738 + ... + 13543301811.

It is an arithmetic number, because the mean of its divisors is an integer number (257322733725).

Almost surely, 2^{1002204331313} is an apocalyptic number.

It is an amenable number.

1002204331313 is a deficient number, since it is larger than the sum of its proper divisors (27086603587).

1002204331313 is an equidigital number, since it uses as much as digits as its factorization.

1002204331313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27086603586.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 1002204331313 its reverse (3131334022001), we get a palindrome (4133538353314).

The spelling of 1002204331313 in words is "one trillion, two billion, two hundred four million, three hundred thirty-one thousand, three hundred thirteen".