23432421149 has 2 divisors, whose sum is σ = 23432421150. Its totient is φ = 23432421148.

The previous prime is 23432421073. The next prime is 23432421151. The reversal of 23432421149 is 94112423432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23297443225 + 134977924 = 152635^2 + 11618^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23432421149 is a prime.

Together with 23432421151, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23432423149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11716210574 + 11716210575.

It is an arithmetic number, because the mean of its divisors is an integer number (11716210575).

Almost surely, 2^23432421149 is an apocalyptic number.

It is an amenable number.

23432421149 is a deficient number, since it is larger than the sum of its proper divisors (1).

23432421149 is an equidigital number, since it uses as much as digits as its factorization.

23432421149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 35.

The spelling of 23432421149 in words is "twenty-three billion, four hundred thirty-two million, four hundred twenty-one thousand, one hundred forty-nine".