223123112 has 8 divisors (see below), whose sum is σ = 418355850. Its totient is φ = 111561552.

The previous prime is 223123081. The next prime is 223123127. The reversal of 223123112 is 211321322.

It can be written as a sum of positive squares in only one way, i.e., 215091556 + 8031556 = 14666^2 + 2834^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×223123112³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13945187 + ... + 13945202.

Almost surely, 2^223123112 is an apocalyptic number.

It is an amenable number.

223123112 is a deficient number, since it is larger than the sum of its proper divisors (195232738).

223123112 is a wasteful number, since it uses less digits than its factorization.

223123112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27890395 (or 27890391 counting only the distinct ones).

The product of its digits is 144, while the sum is 17.

The square root of 223123112 is about 14937.3060489501. The cubic root of 223123112 is about 606.5242733608.

Adding to 223123112 its reverse (211321322), we get a palindrome (434444434).

The spelling of 223123112 in words is "two hundred twenty-three million, one hundred twenty-three thousand, one hundred twelve".