1313013012020 has 12 divisors (see below), whose sum is σ = 2757327325284. Its totient is φ = 525205204800.

The previous prime is 1313013011971. The next prime is 1313013012037. The reversal of 1313013012020 is 202103103131.

It can be written as a sum of positive squares in 2 ways, for example, as 212637187876 + 1100375824144 = 461126^2 + 1048988^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1313013012020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32825325281 + ... + 32825325320.

It is an arithmetic number, because the mean of its divisors is an integer number (229777277107).

Almost surely, 2^{1313013012020} is an apocalyptic number.

1313013012020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1313013012020 is an abundant number, since it is smaller than the sum of its proper divisors (1444314313264).

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

1313013012020 is a wasteful number, since it uses less digits than its factorization.

1313013012020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65650650610 (or 65650650608 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 1313013012020 its reverse (202103103131), we get a palindrome (1515116115151).

The spelling of 1313013012020 in words is "one trillion, three hundred thirteen billion, thirteen million, twelve thousand, twenty".