423181223 has 4 divisors (see below), whose sum is σ = 424687488. Its totient is φ = 421674960.

The previous prime is 423181181. The next prime is 423181249. The reversal of 423181223 is 322181324.

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 423181223 - 2¹² = 423177127 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 423181192 and 423181201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423141223) 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, 752711 + ... + 753272.

It is an arithmetic number, because the mean of its divisors is an integer number (106171872).

Almost surely, 2^423181223 is an apocalyptic number.

423181223 is a deficient number, since it is larger than the sum of its proper divisors (1506265).

423181223 is a wasteful number, since it uses less digits than its factorization.

423181223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506264.

The product of its digits is 2304, while the sum is 26.

The square root of 423181223 is about 20571.3690113225. The cubic root of 423181223 is about 750.7732605576.

The spelling of 423181223 in words is "four hundred twenty-three million, one hundred eighty-one thousand, two hundred twenty-three".