231417223 has 2 divisors, whose sum is σ = 231417224. Its totient is φ = 231417222.

The previous prime is 231417217. The next prime is 231417253. The reversal of 231417223 is 322714132.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231417223 - 2¹⁷ = 231286151 is a prime.

It is a super-2 number, since 2×231417223² = 107107862202063458, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231417253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115708611 + 115708612.

It is an arithmetic number, because the mean of its divisors is an integer number (115708612).

Almost surely, 2^231417223 is an apocalyptic number.

231417223 is a deficient number, since it is larger than the sum of its proper divisors (1).

231417223 is an equidigital number, since it uses as much as digits as its factorization.

231417223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 25.

The square root of 231417223 is about 15212.4035904915. The cubic root of 231417223 is about 613.9484292506.

The spelling of 231417223 in words is "two hundred thirty-one million, four hundred seventeen thousand, two hundred twenty-three".