13320434314021 has 16 divisors (see below), whose sum is σ = 13977044686080. Its totient is φ = 12683929835520.

The previous prime is 13320434314003. The next prime is 13320434314037. The reversal of 13320434314021 is 12041343402331.

13320434314021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13320434314021 - 2⁹ = 13320434313509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13320434314001) 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, 24491940 + ... + 25029901.

It is an arithmetic number, because the mean of its divisors is an integer number (873565292880).

Almost surely, 2^{13320434314021} is an apocalyptic number.

It is an amenable number.

13320434314021 is a deficient number, since it is larger than the sum of its proper divisors (656610372059).

13320434314021 is an equidigital number, since it uses as much as digits as its factorization.

13320434314021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49522044.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 13320434314021 its reverse (12041343402331), we get a palindrome (25361777716352).

The spelling of 13320434314021 in words is "thirteen trillion, three hundred twenty billion, four hundred thirty-four million, three hundred fourteen thousand, twenty-one".