20330031101 has 2 divisors, whose sum is σ = 20330031102. Its totient is φ = 20330031100.

The previous prime is 20330031089. The next prime is 20330031143. The reversal of 20330031101 is 10113003302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14908654201 + 5421376900 = 122101^2 + 73630^2 .

It is a cyclic number.

It is not a de Polignac number, because 20330031101 - 2¹⁴ = 20330014717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20330031181) 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, 10165015550 + 10165015551.

It is an arithmetic number, because the mean of its divisors is an integer number (10165015551).

Almost surely, 2^20330031101 is an apocalyptic number.

It is an amenable number.

20330031101 is a deficient number, since it is larger than the sum of its proper divisors (1).

20330031101 is an equidigital number, since it uses as much as digits as its factorization.

20330031101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 20330031101 its reverse (10113003302), we get a palindrome (30443034403).

The spelling of 20330031101 in words is "twenty billion, three hundred thirty million, thirty-one thousand, one hundred one".