20330122180931 has 2 divisors, whose sum is σ = 20330122180932. Its totient is φ = 20330122180930.

The previous prime is 20330122180903. The next prime is 20330122180961. The reversal of 20330122180931 is 13908122103302.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20330122180931 is a prime.

It is a super-2 number, since 2×20330122180931² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20330122180891 and 20330122180900.

It is not a weakly prime, because it can be changed into another prime (20330122180961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10165061090465 + 10165061090466.

It is an arithmetic number, because the mean of its divisors is an integer number (10165061090466).

Almost surely, 2^{20330122180931} is an apocalyptic number.

20330122180931 is a deficient number, since it is larger than the sum of its proper divisors (1).

20330122180931 is an equidigital number, since it uses as much as digits as its factorization.

20330122180931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 35.

The spelling of 20330122180931 in words is "twenty trillion, three hundred thirty billion, one hundred twenty-two million, one hundred eighty thousand, nine hundred thirty-one".