5223343421 has 4 divisors (see below), whose sum is σ = 5224263744. Its totient is φ = 5222423100.

The previous prime is 5223343399. The next prime is 5223343427. The reversal of 5223343421 is 1243433225.

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.

It is a cyclic number.

It is not a de Polignac number, because 5223343421 - 2¹⁸ = 5223081277 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 (5223343427) 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, 451595 + ... + 463016.

It is an arithmetic number, because the mean of its divisors is an integer number (1306065936).

Almost surely, 2^5223343421 is an apocalyptic number.

It is an amenable number.

5223343421 is a deficient number, since it is larger than the sum of its proper divisors (920323).

5223343421 is an equidigital number, since it uses as much as digits as its factorization.

5223343421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920322.

The product of its digits is 17280, while the sum is 29.

The square root of 5223343421 is about 72272.7017690635. The cubic root of 5223343421 is about 1735.0667749411.

Adding to 5223343421 its reverse (1243433225), we get a palindrome (6466776646).

The spelling of 5223343421 in words is "five billion, two hundred twenty-three million, three hundred forty-three thousand, four hundred twenty-one".