24332020421 has 2 divisors, whose sum is σ = 24332020422. Its totient is φ = 24332020420.

The previous prime is 24332020411. The next prime is 24332020501. The reversal of 24332020421 is 12402023342.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23804169796 + 527850625 = 154286^2 + 22975^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-24332020421 is a prime.

It is a super-2 number, since 2×24332020421² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24332020411) 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, 12166010210 + 12166010211.

It is an arithmetic number, because the mean of its divisors is an integer number (12166010211).

Almost surely, 2^24332020421 is an apocalyptic number.

It is an amenable number.

24332020421 is a deficient number, since it is larger than the sum of its proper divisors (1).

24332020421 is an equidigital number, since it uses as much as digits as its factorization.

24332020421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 24332020421 its reverse (12402023342), we get a palindrome (36734043763).

The spelling of 24332020421 in words is "twenty-four billion, three hundred thirty-two million, twenty thousand, four hundred twenty-one".