24403230421 has 2 divisors, whose sum is σ = 24403230422. Its totient is φ = 24403230420.

The previous prime is 24403230419. The next prime is 24403230479. The reversal of 24403230421 is 12403230442.

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., 18285800625 + 6117429796 = 135225^2 + 78214^2 .

It is a cyclic number.

It is not a de Polignac number, because 24403230421 - 2¹ = 24403230419 is a prime.

Together with 24403230419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24403231421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12201615210 + 12201615211.

It is an arithmetic number, because the mean of its divisors is an integer number (12201615211).

Almost surely, 2^24403230421 is an apocalyptic number.

It is an amenable number.

24403230421 is a deficient number, since it is larger than the sum of its proper divisors (1).

24403230421 is an equidigital number, since it uses as much as digits as its factorization.

24403230421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 24403230421 its reverse (12403230442), we get a palindrome (36806460863).

The spelling of 24403230421 in words is "twenty-four billion, four hundred three million, two hundred thirty thousand, four hundred twenty-one".