223430331 has 4 divisors (see below), whose sum is σ = 297907112. Its totient is φ = 148953552.

The previous prime is 223430323. The next prime is 223430341. The reversal of 223430331 is 133034322.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 223430331 - 2³ = 223430323 is a prime.

It is a super-2 number, since 2×223430331² = 99842225621539122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 223430298 and 223430307.

It is not an unprimeable number, because it can be changed into a prime (223430341) 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, 37238386 + ... + 37238391.

It is an arithmetic number, because the mean of its divisors is an integer number (74476778).

Almost surely, 2^223430331 is an apocalyptic number.

223430331 is a deficient number, since it is larger than the sum of its proper divisors (74476781).

223430331 is an equidigital number, since it uses as much as digits as its factorization.

223430331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74476780.

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 223430331 is about 14947.5861261944. The cubic root of 223430331 is about 606.8025208304.

Adding to 223430331 its reverse (133034322), we get a palindrome (356464653).

The spelling of 223430331 in words is "two hundred twenty-three million, four hundred thirty thousand, three hundred thirty-one".