24112420021 has 4 divisors (see below), whose sum is σ = 24113157952. Its totient is φ = 24111682092.

The previous prime is 24112420009. The next prime is 24112420099. The reversal of 24112420021 is 12002421142.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 24112420021 - 2¹⁹ = 24111895733 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 (24112420621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 317565 + ... + 386098.

It is an arithmetic number, because the mean of its divisors is an integer number (6028289488).

Almost surely, 2^24112420021 is an apocalyptic number.

It is an amenable number.

24112420021 is a deficient number, since it is larger than the sum of its proper divisors (737931).

24112420021 is an equidigital number, since it uses as much as digits as its factorization.

24112420021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737930.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 24112420021 its reverse (12002421142), we get a palindrome (36114841163).

The spelling of 24112420021 in words is "twenty-four billion, one hundred twelve million, four hundred twenty thousand, twenty-one".