223331 has 2 divisors, whose sum is σ = 223332. Its totient is φ = 223330.

The previous prime is 223319. The next prime is 223337. The reversal of 223331 is 133322.

223331 is nontrivially palindromic in base 16.

223331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223331 is a prime.

It is a super-2 number, since 2×223331² = 99753471122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (223337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111665 + 111666.

It is an arithmetic number, because the mean of its divisors is an integer number (111666).

2²²³³³¹ is an apocalyptic number.

223331 is a deficient number, since it is larger than the sum of its proper divisors (1).

223331 is an equidigital number, since it uses as much as digits as its factorization.

223331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108, while the sum is 14.

The square root of 223331 is about 472.5790939092. The cubic root of 223331 is about 60.6712584913.

Adding to 223331 its reverse (133322), we get a palindrome (356653).

Subtracting from 223331 its reverse (133322), we obtain a palindrome (90009).

The spelling of 223331 in words is "two hundred twenty-three thousand, three hundred thirty-one".