20322343233481 has 2 divisors, whose sum is σ = 20322343233482. Its totient is φ = 20322343233480.

The previous prime is 20322343233359. The next prime is 20322343233551. The reversal of 20322343233481 is 18433234322302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19588511143881 + 733832089600 = 4425891^2 + 856640^2 .

It is a cyclic number.

It is not a de Polignac number, because 20322343233481 - 2¹¹ = 20322343231433 is a prime.

It is a super-2 number, since 2×20322343233481² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20322343233581) 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, 10161171616740 + 10161171616741.

It is an arithmetic number, because the mean of its divisors is an integer number (10161171616741).

Almost surely, 2^{20322343233481} is an apocalyptic number.

It is an amenable number.

20322343233481 is a deficient number, since it is larger than the sum of its proper divisors (1).

20322343233481 is an equidigital number, since it uses as much as digits as its factorization.

20322343233481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 497664, while the sum is 40.

Adding to 20322343233481 its reverse (18433234322302), we get a palindrome (38755577555783).

The spelling of 20322343233481 in words is "twenty trillion, three hundred twenty-two billion, three hundred forty-three million, two hundred thirty-three thousand, four hundred eighty-one".