20331312010189 has 2 divisors, whose sum is σ = 20331312010190. Its totient is φ = 20331312010188.

The previous prime is 20331312010183. The next prime is 20331312010313. The reversal of 20331312010189 is 98101021313302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13428780120900 + 6902531889289 = 3664530^2 + 2627267^2 .

It is a cyclic number.

It is not a de Polignac number, because 20331312010189 - 2²⁹ = 20330775139277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20331312010183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10165656005094 + 10165656005095.

It is an arithmetic number, because the mean of its divisors is an integer number (10165656005095).

Almost surely, 2^{20331312010189} is an apocalyptic number.

It is an amenable number.

20331312010189 is a deficient number, since it is larger than the sum of its proper divisors (1).

20331312010189 is an equidigital number, since it uses as much as digits as its factorization.

20331312010189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 34.

The spelling of 20331312010189 in words is "twenty trillion, three hundred thirty-one billion, three hundred twelve million, ten thousand, one hundred eighty-nine".