20302120323311 has 16 divisors (see below), whose sum is σ = 20565300715008. Its totient is φ = 20039386910400.

The previous prime is 20302120323299. The next prime is 20302120323323. The reversal of 20302120323311 is 11332302120302.

It is an interprime number because it is at equal distance from previous prime (20302120323299) and next prime (20302120323323).

It is a cyclic number.

It is not a de Polignac number, because 20302120323311 - 2³⁴ = 20284940454127 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 (20302120223311) 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, 1470415370 + ... + 1470429176.

It is an arithmetic number, because the mean of its divisors is an integer number (1285331294688).

Almost surely, 2^{20302120323311} is an apocalyptic number.

20302120323311 is a deficient number, since it is larger than the sum of its proper divisors (263180391697).

20302120323311 is a wasteful number, since it uses less digits than its factorization.

20302120323311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28622.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 20302120323311 its reverse (11332302120302), we get a palindrome (31634422443613).

The spelling of 20302120323311 in words is "twenty trillion, three hundred two billion, one hundred twenty million, three hundred twenty-three thousand, three hundred eleven".