20330122180961 has 2 divisors, whose sum is σ = 20330122180962. Its totient is φ = 20330122180960.

The previous prime is 20330122180931. The next prime is 20330122180967. The reversal of 20330122180961 is 16908122103302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17085458503936 + 3244663677025 = 4133456^2 + 1801295^2 .

It is a cyclic number.

It is not a de Polignac number, because 20330122180961 - 2²² = 20330117986657 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (20330122180967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10165061090480 + 10165061090481.

It is an arithmetic number, because the mean of its divisors is an integer number (10165061090481).

Almost surely, 2^{20330122180961} is an apocalyptic number.

It is an amenable number.

20330122180961 is a deficient number, since it is larger than the sum of its proper divisors (1).

20330122180961 is an equidigital number, since it uses as much as digits as its factorization.

20330122180961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 38.

The spelling of 20330122180961 in words is "twenty trillion, three hundred thirty billion, one hundred twenty-two million, one hundred eighty thousand, nine hundred sixty-one".