1313100331002 has 24 divisors (see below), whose sum is σ = 2845072169940. Its totient is φ = 437696809920.

The previous prime is 1313100330923. The next prime is 1313100331027. The reversal of 1313100331002 is 2001330013131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1313089101801 + 11229201 = 1145901^2 + 3351^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3852852 + ... + 4179792.

Almost surely, 2^{1313100331002} is an apocalyptic number.

1313100331002 is an abundant number, since it is smaller than the sum of its proper divisors (1531971838938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1313100331002 is a wasteful number, since it uses less digits than its factorization.

1313100331002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550078 (or 550075 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 1313100331002 its reverse (2001330013131), we get a palindrome (3314430344133).

The spelling of 1313100331002 in words is "one trillion, three hundred thirteen billion, one hundred million, three hundred thirty-one thousand, two".