1313031302020 has 48 divisors (see below), whose sum is σ = 2799214588800. Its totient is φ = 517257251840.

The previous prime is 1313031301997. The next prime is 1313031302053. The reversal of 1313031302020 is 202031303131.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 821511 + ... + 1816849.

It is an arithmetic number, because the mean of its divisors is an integer number (58316970600).

Almost surely, 2^{1313031302020} is an apocalyptic number.

1313031302020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1313031302020 is an abundant number, since it is smaller than the sum of its proper divisors (1486183286780).

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

1313031302020 is a wasteful number, since it uses less digits than its factorization.

1313031302020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996348 (or 996346 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 1313031302020 its reverse (202031303131), we get a palindrome (1515062605151).

The spelling of 1313031302020 in words is "one trillion, three hundred thirteen billion, thirty-one million, three hundred two thousand, twenty".