24403423030021 has 6 divisors (see below), whose sum is σ = 28387655361510. Its totient is φ = 20917219739976.

The previous prime is 24403423030013. The next prime is 24403423030073. The reversal of 24403423030021 is 12003032430442.

It can be written as a sum of positive squares in only one way, i.e., 24059898097921 + 343524932100 = 4905089^2 + 586110^2 .

It is not a de Polignac number, because 24403423030021 - 2³ = 24403423030013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24403423030081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 249014520666 + ... + 249014520763.

It is an arithmetic number, because the mean of its divisors is an integer number (4731275893585).

Almost surely, 2^{24403423030021} is an apocalyptic number.

It is an amenable number.

24403423030021 is a deficient number, since it is larger than the sum of its proper divisors (3984232331489).

24403423030021 is an equidigital number, since it uses as much as digits as its factorization.

24403423030021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498029041443 (or 498029041436 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 24403423030021 its reverse (12003032430442), we get a palindrome (36406455460463).

The spelling of 24403423030021 in words is "twenty-four trillion, four hundred three billion, four hundred twenty-three million, thirty thousand, twenty-one".