1313002120020 has 96 divisors (see below), whose sum is σ = 3685618734336. Its totient is φ = 349257292800.

The previous prime is 1313002120013. The next prime is 1313002120037. The reversal of 1313002120020 is 200212003131.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57725850 + ... + 57748590.

It is an arithmetic number, because the mean of its divisors is an integer number (38391861816).

Almost surely, 2^{1313002120020} is an apocalyptic number.

1313002120020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1313002120020 is an abundant number, since it is smaller than the sum of its proper divisors (2372616614316).

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

1313002120020 is a wasteful number, since it uses less digits than its factorization.

1313002120020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25121 (or 25119 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 1313002120020 its reverse (200212003131), we get a palindrome (1513214123151).

The spelling of 1313002120020 in words is "one trillion, three hundred thirteen billion, two million, one hundred twenty thousand, twenty".