20321330110297 has 4 divisors (see below), whose sum is σ = 20753698836096. Its totient is φ = 19888961384500.

The previous prime is 20321330110283. The next prime is 20321330110303. The reversal of 20321330110297 is 79201103312302.

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 a de Polignac number, because none of the positive numbers 2^k-20321330110297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20321330110397) 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, 216184362829 + ... + 216184362922.

It is an arithmetic number, because the mean of its divisors is an integer number (5188424709024).

Almost surely, 2^{20321330110297} is an apocalyptic number.

It is an amenable number.

20321330110297 is a deficient number, since it is larger than the sum of its proper divisors (432368725799).

20321330110297 is an equidigital number, since it uses as much as digits as its factorization.

20321330110297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432368725798.

The product of its (nonzero) digits is 13608, while the sum is 34.

Adding to 20321330110297 its reverse (79201103312302), we get a palindrome (99522433422599).

The spelling of 20321330110297 in words is "twenty trillion, three hundred twenty-one billion, three hundred thirty million, one hundred ten thousand, two hundred ninety-seven".