123212132 has 12 divisors (see below), whose sum is σ = 215850096. Its totient is φ = 61540680.

The previous prime is 123212087. The next prime is 123212143. The reversal of 123212132 is 231212321.

It is a self number, because there is not a number n which added to its sum of digits gives 123212132.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11978 + ... + 19745.

It is an arithmetic number, because the mean of its divisors is an integer number (17987508).

Almost surely, 2^123212132 is an apocalyptic number.

It is an amenable number.

123212132 is a deficient number, since it is larger than the sum of its proper divisors (92637964).

123212132 is a wasteful number, since it uses less digits than its factorization.

123212132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32698 (or 32696 counting only the distinct ones).

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

The square root of 123212132 is about 11100.0960356206. The cubic root of 123212132 is about 497.6047195870.

Adding to 123212132 its reverse (231212321), we get a palindrome (354424453).

The spelling of 123212132 in words is "one hundred twenty-three million, two hundred twelve thousand, one hundred thirty-two".