23961429109 has 2 divisors, whose sum is σ = 23961429110. Its totient is φ = 23961429108.

The previous prime is 23961429073. The next prime is 23961429113. The reversal of 23961429109 is 90192416932.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23536162225 + 425266884 = 153415^2 + 20622^2 .

It is a cyclic number.

It is not a de Polignac number, because 23961429109 - 2²⁷ = 23827211381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23961429119) 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, 11980714554 + 11980714555.

It is an arithmetic number, because the mean of its divisors is an integer number (11980714555).

Almost surely, 2^23961429109 is an apocalyptic number.

It is an amenable number.

23961429109 is a deficient number, since it is larger than the sum of its proper divisors (1).

23961429109 is an equidigital number, since it uses as much as digits as its factorization.

23961429109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 209952, while the sum is 46.

The spelling of 23961429109 in words is "twenty-three billion, nine hundred sixty-one million, four hundred twenty-nine thousand, one hundred nine".