12123030032 has 20 divisors (see below), whose sum is σ = 23494286076. Its totient is φ = 6059988480.

The previous prime is 12123029999. The next prime is 12123030037. The reversal of 12123030032 is 23003032121.

It can be written as a sum of positive squares in 2 ways, for example, as 3659766016 + 8463264016 = 60496^2 + 91996^2 .

It is not an unprimeable number, because it can be changed into a prime (12123030037) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 28469 + ... + 158292.

Almost surely, 2^12123030032 is an apocalyptic number.

It is an amenable number.

12123030032 is a deficient number, since it is larger than the sum of its proper divisors (11371256044).

12123030032 is a wasteful number, since it uses less digits than its factorization.

12123030032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190826 (or 190820 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 12123030032 its reverse (23003032121), we get a palindrome (35126062153).

The spelling of 12123030032 in words is "twelve billion, one hundred twenty-three million, thirty thousand, thirty-two".