20321232311 has 2 divisors, whose sum is σ = 20321232312. Its totient is φ = 20321232310.

The previous prime is 20321232293. The next prime is 20321232329. The reversal of 20321232311 is 11323212302.

It is a balanced prime because it is at equal distance from previous prime (20321232293) and next prime (20321232329).

It is a cyclic number.

It is not a de Polignac number, because 20321232311 - 2²⁶ = 20254123447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20321232391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10160616155 + 10160616156.

It is an arithmetic number, because the mean of its divisors is an integer number (10160616156).

Almost surely, 2^20321232311 is an apocalyptic number.

20321232311 is a deficient number, since it is larger than the sum of its proper divisors (1).

20321232311 is an equidigital number, since it uses as much as digits as its factorization.

20321232311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20321232311 its reverse (11323212302), we get a palindrome (31644444613).

The spelling of 20321232311 in words is "twenty billion, three hundred twenty-one million, two hundred thirty-two thousand, three hundred eleven".