123223012 has 18 divisors (see below), whose sum is σ = 237027014. Its totient is φ = 56010240.

The previous prime is 123223007. The next prime is 123223031. The reversal of 123223012 is 210322321.

It can be written as a sum of positive squares in only one way, i.e., 114789796 + 8433216 = 10714^2 + 2904^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 126813 + ... + 127780.

Almost surely, 2^123223012 is an apocalyptic number.

It is an amenable number.

123223012 is a deficient number, since it is larger than the sum of its proper divisors (113804002).

123223012 is a wasteful number, since it uses less digits than its factorization.

123223012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254619 (or 254606 counting only the distinct ones).

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

The square root of 123223012 is about 11100.5861106520. The cubic root of 123223012 is about 497.6193658179.

Adding to 123223012 its reverse (210322321), we get a palindrome (333545333).

The spelling of 123223012 in words is "one hundred twenty-three million, two hundred twenty-three thousand, twelve".