223031233 has 2 divisors, whose sum is σ = 223031234. Its totient is φ = 223031232.

The previous prime is 223031203. The next prime is 223031251. The reversal of 223031233 is 332130322.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 189530289 + 33500944 = 13767^2 + 5788^2 .

It is a cyclic number.

It is not a de Polignac number, because 223031233 - 2⁵ = 223031201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 223031233.

It is not a weakly prime, because it can be changed into another prime (223031203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111515616 + 111515617.

It is an arithmetic number, because the mean of its divisors is an integer number (111515617).

Almost surely, 2^223031233 is an apocalyptic number.

It is an amenable number.

223031233 is a deficient number, since it is larger than the sum of its proper divisors (1).

223031233 is an equidigital number, since it uses as much as digits as its factorization.

223031233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 223031233 is about 14934.2302446427. The cubic root of 223031233 is about 606.4410091722.

Adding to 223031233 its reverse (332130322), we get a palindrome (555161555).

The spelling of 223031233 in words is "two hundred twenty-three million, thirty-one thousand, two hundred thirty-three".