20321232367 has 2 divisors, whose sum is σ = 20321232368. Its totient is φ = 20321232366.

The previous prime is 20321232329. The next prime is 20321232391. The reversal of 20321232367 is 76323212302.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20321232367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20321632367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10160616183 + 10160616184.

It is an arithmetic number, because the mean of its divisors is an integer number (10160616184).

Almost surely, 2^20321232367 is an apocalyptic number.

20321232367 is a deficient number, since it is larger than the sum of its proper divisors (1).

20321232367 is an equidigital number, since it uses as much as digits as its factorization.

20321232367 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 31.

Adding to 20321232367 its reverse (76323212302), we get a palindrome (96644444669).

The spelling of 20321232367 in words is "twenty billion, three hundred twenty-one million, two hundred thirty-two thousand, three hundred sixty-seven".