223123012 has 12 divisors (see below), whose sum is σ = 446246080. Its totient is φ = 95624136.

The previous prime is 223123003. The next prime is 223123049. The reversal of 223123012 is 210321322.

223123012 is an admirable number.

It is a super-3 number, since 3×223123012³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3984312 + ... + 3984367.

Almost surely, 2^223123012 is an apocalyptic number.

It is an amenable number.

223123012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

223123012 is a wasteful number, since it uses less digits than its factorization.

223123012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7968690 (or 7968688 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 223123012 is about 14937.3027016259. The cubic root of 223123012 is about 606.5241827495.

Adding to 223123012 its reverse (210321322), we get a palindrome (433444334).

The spelling of 223123012 in words is "two hundred twenty-three million, one hundred twenty-three thousand, twelve".