1312003220313 has 8 divisors (see below), whose sum is σ = 1768993106400. Its totient is φ = 864841073888.

The previous prime is 1312003220287. The next prime is 1312003220321. The reversal of 1312003220313 is 3130223002131.

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

It is a cyclic number.

It is not a de Polignac number, because 1312003220313 - 2⁸ = 1312003220057 is a prime.

It is a super-2 number, since 2×1312003220313² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1312003220313.

It is not an unprimeable number, because it can be changed into a prime (1312003220113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2456934603 + ... + 2456935136.

It is an arithmetic number, because the mean of its divisors is an integer number (221124138300).

Almost surely, 2^{1312003220313} is an apocalyptic number.

It is an amenable number.

1312003220313 is a deficient number, since it is larger than the sum of its proper divisors (456989886087).

1312003220313 is an equidigital number, since it uses as much as digits as its factorization.

1312003220313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4913869831.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 1312003220313 its reverse (3130223002131), we get a palindrome (4442226222444).

The spelling of 1312003220313 in words is "one trillion, three hundred twelve billion, three million, two hundred twenty thousand, three hundred thirteen".