20330102861 has 2 divisors, whose sum is σ = 20330102862. Its totient is φ = 20330102860.

The previous prime is 20330102803. The next prime is 20330102909. The reversal of 20330102861 is 16820103302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13207755625 + 7122347236 = 114925^2 + 84394^2 .

It is a cyclic number.

It is not a de Polignac number, because 20330102861 - 2³⁴ = 3150233677 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20330102861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20330102801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10165051430 + 10165051431.

It is an arithmetic number, because the mean of its divisors is an integer number (10165051431).

Almost surely, 2^20330102861 is an apocalyptic number.

It is an amenable number.

20330102861 is a deficient number, since it is larger than the sum of its proper divisors (1).

20330102861 is an equidigital number, since it uses as much as digits as its factorization.

20330102861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The spelling of 20330102861 in words is "twenty billion, three hundred thirty million, one hundred two thousand, eight hundred sixty-one".