20233110232261 has 2 divisors, whose sum is σ = 20233110232262. Its totient is φ = 20233110232260.

The previous prime is 20233110232199. The next prime is 20233110232333. The reversal of 20233110232261 is 16223201133202.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15261570439236 + 4971539793025 = 3906606^2 + 2229695^2 .

It is a cyclic number.

It is not a de Polignac number, because 20233110232261 - 2⁹ = 20233110231749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20233110238261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10116555116130 + 10116555116131.

It is an arithmetic number, because the mean of its divisors is an integer number (10116555116131).

Almost surely, 2^{20233110232261} is an apocalyptic number.

It is an amenable number.

20233110232261 is a deficient number, since it is larger than the sum of its proper divisors (1).

20233110232261 is an equidigital number, since it uses as much as digits as its factorization.

20233110232261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 20233110232261 its reverse (16223201133202), we get a palindrome (36456311365463).

The spelling of 20233110232261 in words is "twenty trillion, two hundred thirty-three billion, one hundred ten million, two hundred thirty-two thousand, two hundred sixty-one".