13320312110021 has 16 divisors (see below), whose sum is σ = 15380595732480. Its totient is φ = 11299813580160.

The previous prime is 13320312109991. The next prime is 13320312110081. The reversal of 13320312110021 is 12001121302331.

It is a happy number.

13320312110021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13320312110021 - 2²⁶ = 13320245001157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13320312109975 and 13320312110002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13320312110081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17953610 + ... + 18680811.

It is an arithmetic number, because the mean of its divisors is an integer number (961287233280).

Almost surely, 2^{13320312110021} is an apocalyptic number.

It is an amenable number.

13320312110021 is a deficient number, since it is larger than the sum of its proper divisors (2060283622459).

13320312110021 is a wasteful number, since it uses less digits than its factorization.

13320312110021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36634964.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 13320312110021 its reverse (12001121302331), we get a palindrome (25321433412352).

The spelling of 13320312110021 in words is "thirteen trillion, three hundred twenty billion, three hundred twelve million, one hundred ten thousand, twenty-one".