223012331 has 4 divisors (see below), whose sum is σ = 223545000. Its totient is φ = 222479664.

The previous prime is 223012327. The next prime is 223012351. The reversal of 223012331 is 133210322.

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

It is a cyclic number.

It is not a de Polignac number, because 223012331 - 2² = 223012327 is a prime.

It is a super-2 number, since 2×223012331² = 99468999556107122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223012351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 265706 + ... + 266543.

It is an arithmetic number, because the mean of its divisors is an integer number (55886250).

Almost surely, 2^223012331 is an apocalyptic number.

223012331 is a deficient number, since it is larger than the sum of its proper divisors (532669).

223012331 is an equidigital number, since it uses as much as digits as its factorization.

223012331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532668.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 223012331 is about 14933.5973897785. The cubic root of 223012331 is about 606.4238766363.

Adding to 223012331 its reverse (133210322), we get a palindrome (356222653).

The spelling of 223012331 in words is "two hundred twenty-three million, twelve thousand, three hundred thirty-one".