24213033402421 has 2 divisors, whose sum is σ = 24213033402422. Its totient is φ = 24213033402420.

The previous prime is 24213033402373. The next prime is 24213033402433. The reversal of 24213033402421 is 12420433031242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23853836953521 + 359196448900 = 4884039^2 + 599330^2 .

It is a cyclic number.

It is not a de Polignac number, because 24213033402421 - 2⁷ = 24213033402293 is a prime.

It is a super-2 number, since 2×24213033402421² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24213033102421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12106516701210 + 12106516701211.

It is an arithmetic number, because the mean of its divisors is an integer number (12106516701211).

Almost surely, 2^{24213033402421} is an apocalyptic number.

It is an amenable number.

24213033402421 is a deficient number, since it is larger than the sum of its proper divisors (1).

24213033402421 is an equidigital number, since it uses as much as digits as its factorization.

24213033402421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 24213033402421 its reverse (12420433031242), we get a palindrome (36633466433663).

The spelling of 24213033402421 in words is "twenty-four trillion, two hundred thirteen billion, thirty-three million, four hundred two thousand, four hundred twenty-one".