23108224781 has 2 divisors, whose sum is σ = 23108224782. Its totient is φ = 23108224780.

The previous prime is 23108224771. The next prime is 23108224813. The reversal of 23108224781 is 18742280132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22662592681 + 445632100 = 150541^2 + 21110^2 .

It is a cyclic number.

It is not a de Polignac number, because 23108224781 - 2¹⁸ = 23107962637 is a prime.

It is a super-2 number, since 2×23108224781² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23108224771) 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, 11554112390 + 11554112391.

It is an arithmetic number, because the mean of its divisors is an integer number (11554112391).

Almost surely, 2^23108224781 is an apocalyptic number.

It is an amenable number.

23108224781 is a deficient number, since it is larger than the sum of its proper divisors (1).

23108224781 is an equidigital number, since it uses as much as digits as its factorization.

23108224781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43008, while the sum is 38.

The spelling of 23108224781 in words is "twenty-three billion, one hundred eight million, two hundred twenty-four thousand, seven hundred eighty-one".