223431123 has 8 divisors (see below), whose sum is σ = 305959888. Its totient is φ = 144928224.

The previous prime is 223431113. The next prime is 223431163. The reversal of 223431123 is 321134322.

223431123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 223431123 - 2⁹ = 223430611 is a prime.

It is a super-2 number, since 2×223431123² = 99842933450082258, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 223431123.

It is not an unprimeable number, because it can be changed into a prime (223431113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1006336 + ... + 1006557.

It is an arithmetic number, because the mean of its divisors is an integer number (38244986).

Almost surely, 2^223431123 is an apocalyptic number.

223431123 is a deficient number, since it is larger than the sum of its proper divisors (82528765).

223431123 is a wasteful number, since it uses less digits than its factorization.

223431123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2012933.

The product of its digits is 864, while the sum is 21.

The square root of 223431123 is about 14947.6126187428. The cubic root of 223431123 is about 606.8032378131.

Adding to 223431123 its reverse (321134322), we get a palindrome (544565445).

The spelling of 223431123 in words is "two hundred twenty-three million, four hundred thirty-one thousand, one hundred twenty-three".