223320431 has 8 divisors (see below), whose sum is σ = 225802080. Its totient is φ = 220847872.

The previous prime is 223320421. The next prime is 223320437. The reversal of 223320431 is 134023322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 223320431 - 2¹⁴ = 223304047 is a prime.

It is a super-2 number, since 2×223320431² = 99744029804051522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223320437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54875 + ... + 58803.

It is an arithmetic number, because the mean of its divisors is an integer number (28225260).

Almost surely, 2^223320431 is an apocalyptic number.

223320431 is a deficient number, since it is larger than the sum of its proper divisors (2481649).

223320431 is a wasteful number, since it uses less digits than its factorization.

223320431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4545.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 223320431 is about 14943.9094951756. The cubic root of 223320431 is about 606.7030139972.

Adding to 223320431 its reverse (134023322), we get a palindrome (357343753).

The spelling of 223320431 in words is "two hundred twenty-three million, three hundred twenty thousand, four hundred thirty-one".