24033240421 has 2 divisors, whose sum is σ = 24033240422. Its totient is φ = 24033240420.

The previous prime is 24033240419. The next prime is 24033240433. The reversal of 24033240421 is 12404233042.

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., 18470169025 + 5563071396 = 135905^2 + 74586^2 .

It is a cyclic number.

It is not a de Polignac number, because 24033240421 - 2¹ = 24033240419 is a prime.

Together with 24033240419, 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 (24033246421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12016620210 + 12016620211.

It is an arithmetic number, because the mean of its divisors is an integer number (12016620211).

Almost surely, 2^24033240421 is an apocalyptic number.

It is an amenable number.

24033240421 is a deficient number, since it is larger than the sum of its proper divisors (1).

24033240421 is an equidigital number, since it uses as much as digits as its factorization.

24033240421 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 24033240421 its reverse (12404233042), we get a palindrome (36437473463).

The spelling of 24033240421 in words is "twenty-four billion, thirty-three million, two hundred forty thousand, four hundred twenty-one".