20331030110231 has 2 divisors, whose sum is σ = 20331030110232. Its totient is φ = 20331030110230.

The previous prime is 20331030110227. The next prime is 20331030110333. The reversal of 20331030110231 is 13201103013302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20331030110231 - 2² = 20331030110227 is a prime.

It is a super-2 number, since 2×20331030110231² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20331030112231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10165515055115 + 10165515055116.

It is an arithmetic number, because the mean of its divisors is an integer number (10165515055116).

Almost surely, 2^{20331030110231} is an apocalyptic number.

20331030110231 is a deficient number, since it is larger than the sum of its proper divisors (1).

20331030110231 is an equidigital number, since it uses as much as digits as its factorization.

20331030110231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 20331030110231 its reverse (13201103013302), we get a palindrome (33532133123533).

The spelling of 20331030110231 in words is "twenty trillion, three hundred thirty-one billion, thirty million, one hundred ten thousand, two hundred thirty-one".