20321332302113 has 4 divisors (see below), whose sum is σ = 20467528937520. Its totient is φ = 20175135666708.

The previous prime is 20321332302053. The next prime is 20321332302119. The reversal of 20321332302113 is 31120323312302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20321332302113 - 2²⁰ = 20321331253537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20321332302119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73098317495 + ... + 73098317772.

It is an arithmetic number, because the mean of its divisors is an integer number (5116882234380).

Almost surely, 2^{20321332302113} is an apocalyptic number.

It is an amenable number.

20321332302113 is a deficient number, since it is larger than the sum of its proper divisors (146196635407).

20321332302113 is a wasteful number, since it uses less digits than its factorization.

20321332302113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146196635406.

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

Adding to 20321332302113 its reverse (31120323312302), we get a palindrome (51441655614415).

The spelling of 20321332302113 in words is "twenty trillion, three hundred twenty-one billion, three hundred thirty-two million, three hundred two thousand, one hundred thirteen".