1313012002 has 4 divisors (see below), whose sum is σ = 1969518006. Its totient is φ = 656506000.

The previous prime is 1313011993. The next prime is 1313012027. The reversal of 1313012002 is 2002103131.

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

It can be written as a sum of positive squares in only one way, i.e., 1081028641 + 231983361 = 32879^2 + 15231^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328252999 + ... + 328253002.

Almost surely, 2^1313012002 is an apocalyptic number.

1313012002 is a deficient number, since it is larger than the sum of its proper divisors (656506004).

1313012002 is an equidigital number, since it uses as much as digits as its factorization.

1313012002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656506003.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1313012002 is about 36235.5074754032. The cubic root of 1313012002 is about 1095.0221361496.

Adding to 1313012002 its reverse (2002103131), we get a palindrome (3315115133).

The spelling of 1313012002 in words is "one billion, three hundred thirteen million, twelve thousand, two".