20320322120101 has 2 divisors, whose sum is σ = 20320322120102. Its totient is φ = 20320322120100.

The previous prime is 20320322120099. The next prime is 20320322120117. The reversal of 20320322120101 is 10102122302302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12494287895076 + 7826034225025 = 3534726^2 + 2797505^2 .

It is a cyclic number.

It is not a de Polignac number, because 20320322120101 - 2¹ = 20320322120099 is a prime.

Together with 20320322120099, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20320322120201) 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, 10160161060050 + 10160161060051.

It is an arithmetic number, because the mean of its divisors is an integer number (10160161060051).

Almost surely, 2^{20320322120101} is an apocalyptic number.

It is an amenable number.

20320322120101 is a deficient number, since it is larger than the sum of its proper divisors (1).

20320322120101 is an equidigital number, since it uses as much as digits as its factorization.

20320322120101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20320322120101 its reverse (10102122302302), we get a palindrome (30422444422403).

The spelling of 20320322120101 in words is "twenty trillion, three hundred twenty billion, three hundred twenty-two million, one hundred twenty thousand, one hundred one".