223631423 has 2 divisors, whose sum is σ = 223631424. Its totient is φ = 223631422.

The previous prime is 223631399. The next prime is 223631459. The reversal of 223631423 is 324136322.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 223631423 - 2⁸ = 223631167 is a prime.

It is a super-2 number, since 2×223631423² = 100022026706009858, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 223631392 and 223631401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223631483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111815711 + 111815712.

It is an arithmetic number, because the mean of its divisors is an integer number (111815712).

Almost surely, 2^223631423 is an apocalyptic number.

223631423 is a deficient number, since it is larger than the sum of its proper divisors (1).

223631423 is an equidigital number, since it uses as much as digits as its factorization.

223631423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 26.

The square root of 223631423 is about 14954.3111844043. The cubic root of 223631423 is about 606.9845112559.

Adding to 223631423 its reverse (324136322), we get a palindrome (547767745).

The spelling of 223631423 in words is "two hundred twenty-three million, six hundred thirty-one thousand, four hundred twenty-three".