23331232261 has 2 divisors, whose sum is σ = 23331232262. Its totient is φ = 23331232260.

The previous prime is 23331232207. The next prime is 23331232273. The reversal of 23331232261 is 16223213332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20533457025 + 2797775236 = 143295^2 + 52894^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23331232261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23331232961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11665616130 + 11665616131.

It is an arithmetic number, because the mean of its divisors is an integer number (11665616131).

Almost surely, 2^23331232261 is an apocalyptic number.

It is an amenable number.

23331232261 is a deficient number, since it is larger than the sum of its proper divisors (1).

23331232261 is an equidigital number, since it uses as much as digits as its factorization.

23331232261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 28.

Adding to 23331232261 its reverse (16223213332), we get a palindrome (39554445593).

The spelling of 23331232261 in words is "twenty-three billion, three hundred thirty-one million, two hundred thirty-two thousand, two hundred sixty-one".