13323120000020 has 24 divisors (see below), whose sum is σ = 27985421444904. Its totient is φ = 5327939534336.

The previous prime is 13323119999983. The next prime is 13323120000061. The reversal of 13323120000020 is 2000002132331.

It can be written as a sum of positive squares in 4 ways, for example, as 679562814736 + 12643557185284 = 824356^2 + 3555778^2 .

It is a congruent number.

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, 81695609 + ... + 81858528.

It is an arithmetic number, because the mean of its divisors is an integer number (1166059226871).

Almost surely, 2^{13323120000020} is an apocalyptic number.

13323120000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13323120000020 is an abundant number, since it is smaller than the sum of its proper divisors (14662301444884).

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

13323120000020 is a wasteful number, since it uses less digits than its factorization.

13323120000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163558219 (or 163558217 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 13323120000020 its reverse (2000002132331), we get a palindrome (15323122132351).

The spelling of 13323120000020 in words is "thirteen trillion, three hundred twenty-three billion, one hundred twenty million, twenty", and thus it is an aban number.