24021140421 has 4 divisors (see below), whose sum is σ = 32028187232. Its totient is φ = 16014093612.

The previous prime is 24021140419. The next prime is 24021140443. The reversal of 24021140421 is 12404112042.

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 not a de Polignac number, because 24021140421 - 2¹ = 24021140419 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 (24021140401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4003523401 + ... + 4003523406.

It is an arithmetic number, because the mean of its divisors is an integer number (8007046808).

Almost surely, 2^24021140421 is an apocalyptic number.

It is an amenable number.

24021140421 is a deficient number, since it is larger than the sum of its proper divisors (8007046811).

24021140421 is an equidigital number, since it uses as much as digits as its factorization.

24021140421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8007046810.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 24021140421 its reverse (12404112042), we get a palindrome (36425252463).

The spelling of 24021140421 in words is "twenty-four billion, twenty-one million, one hundred forty thousand, four hundred twenty-one".