20024244413 has 4 divisors (see below), whose sum is σ = 20041463328. Its totient is φ = 20007025500.

The previous prime is 20024244403. The next prime is 20024244437. The reversal of 20024244413 is 31444242002.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31444242002 = 2 ⋅15722121001.

It is a cyclic number.

It is not a de Polignac number, because 20024244413 - 2¹² = 20024240317 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20024244403) 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, 8607713 + ... + 8610038.

It is an arithmetic number, because the mean of its divisors is an integer number (5010365832).

Almost surely, 2^20024244413 is an apocalyptic number.

It is an amenable number.

20024244413 is a deficient number, since it is larger than the sum of its proper divisors (17218915).

20024244413 is a wasteful number, since it uses less digits than its factorization.

20024244413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17218914.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 20024244413 its reverse (31444242002), we get a palindrome (51468486415).

The spelling of 20024244413 in words is "twenty billion, twenty-four million, two hundred forty-four thousand, four hundred thirteen".