20234304421 has 4 divisors (see below), whose sum is σ = 20234595744. Its totient is φ = 20234013100.

The previous prime is 20234304403. The next prime is 20234304427. The reversal of 20234304421 is 12440343202.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20234304421 - 2⁹ = 20234303909 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 (20234304427) 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, 25806 + ... + 202816.

It is an arithmetic number, because the mean of its divisors is an integer number (5058648936).

Almost surely, 2^20234304421 is an apocalyptic number.

It is an amenable number.

20234304421 is a deficient number, since it is larger than the sum of its proper divisors (291323).

20234304421 is a wasteful number, since it uses less digits than its factorization.

20234304421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291322.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 20234304421 its reverse (12440343202), we get a palindrome (32674647623).

The spelling of 20234304421 in words is "twenty billion, two hundred thirty-four million, three hundred four thousand, four hundred twenty-one".