1313303312220 has 48 divisors (see below), whose sum is σ = 3685123548288. Its totient is φ = 349464285760.

The previous prime is 1313303312203. The next prime is 1313303312249. The reversal of 1313303312220 is 222133033131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23407086 + ... + 23463125.

It is an arithmetic number, because the mean of its divisors is an integer number (76773407256).

Almost surely, 2^{1313303312220} is an apocalyptic number.

1313303312220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1313303312220 is an abundant number, since it is smaller than the sum of its proper divisors (2371820236068).

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

1313303312220 is a wasteful number, since it uses less digits than its factorization.

1313303312220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46870690 (or 46870688 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 1313303312220 its reverse (222133033131), we get a palindrome (1535436345351).

The spelling of 1313303312220 in words is "one trillion, three hundred thirteen billion, three hundred three million, three hundred twelve thousand, two hundred twenty".