20302122131297 has 4 divisors (see below), whose sum is σ = 20491861590576. Its totient is φ = 20112382672020.

The previous prime is 20302122131273. The next prime is 20302122131341. The reversal of 20302122131297 is 79213122120302.

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 20302122131297 - 2¹⁴ = 20302122114913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20302152131297) 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, 94869729479 + ... + 94869729692.

It is an arithmetic number, because the mean of its divisors is an integer number (5122965397644).

Almost surely, 2^{20302122131297} is an apocalyptic number.

It is an amenable number.

20302122131297 is a deficient number, since it is larger than the sum of its proper divisors (189739459279).

20302122131297 is a wasteful number, since it uses less digits than its factorization.

20302122131297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189739459278.

The product of its (nonzero) digits is 18144, while the sum is 35.

Adding to 20302122131297 its reverse (79213122120302), we get a palindrome (99515244251599).

The spelling of 20302122131297 in words is "twenty trillion, three hundred two billion, one hundred twenty-two million, one hundred thirty-one thousand, two hundred ninety-seven".