20322121153 has 2 divisors, whose sum is σ = 20322121154. Its totient is φ = 20322121152.

The previous prime is 20322121117. The next prime is 20322121159. The reversal of 20322121153 is 35112122302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19412012929 + 910108224 = 139327^2 + 30168^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20322121153 is a prime.

It is not a weakly prime, because it can be changed into another prime (20322121159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10161060576 + 10161060577.

It is an arithmetic number, because the mean of its divisors is an integer number (10161060577).

Almost surely, 2^20322121153 is an apocalyptic number.

It is an amenable number.

20322121153 is a deficient number, since it is larger than the sum of its proper divisors (1).

20322121153 is an equidigital number, since it uses as much as digits as its factorization.

20322121153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 20322121153 its reverse (35112122302), we get a palindrome (55434243455).

The spelling of 20322121153 in words is "twenty billion, three hundred twenty-two million, one hundred twenty-one thousand, one hundred fifty-three".