20224313 has 4 divisors (see below), whose sum is σ = 20254608. Its totient is φ = 20194020.

The previous prime is 20224301. The next prime is 20224327. The reversal of 20224313 is 31342202.

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: 31342202 = 2 ⋅15671101.

It is a cyclic number.

It is not a de Polignac number, because 20224313 - 2⁴ = 20224297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20224291 and 20224300.

It is not an unprimeable number, because it can be changed into a prime (20224333) 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, 14123 + ... + 15488.

It is an arithmetic number, because the mean of its divisors is an integer number (5063652).

Almost surely, 2^20224313 is an apocalyptic number.

It is an amenable number.

20224313 is a deficient number, since it is larger than the sum of its proper divisors (30295).

20224313 is an equidigital number, since it uses as much as digits as its factorization.

20224313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30294.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 20224313 is about 4497.1449832088. The cubic root of 20224313 is about 272.4527898463.

Adding to 20224313 its reverse (31342202), we get a palindrome (51566515).

The spelling of 20224313 in words is "twenty million, two hundred twenty-four thousand, three hundred thirteen".