13023313221320 has 32 divisors (see below), whose sum is σ = 29305415184120. Its totient is φ = 5208798988800.

The previous prime is 13023313221299. The next prime is 13023313221427. The reversal of 13023313221320 is 2312231332031.

It can be written as a sum of positive squares in 4 ways, for example, as 13022816733796 + 496487524 = 3608714^2 + 22282^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13023313221320.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16045877 + ... + 16837956.

Almost surely, 2^{13023313221320} is an apocalyptic number.

13023313221320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13023313221320 is an abundant number, since it is smaller than the sum of its proper divisors (16282101962800).

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

13023313221320 is a wasteful number, since it uses less digits than its factorization.

13023313221320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32893745 (or 32893741 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 13023313221320 its reverse (2312231332031), we get a palindrome (15335544553351).

The spelling of 13023313221320 in words is "thirteen trillion, twenty-three billion, three hundred thirteen million, two hundred twenty-one thousand, three hundred twenty".