123220132 has 12 divisors (see below), whose sum is σ = 246440320. Its totient is φ = 52808616.

The previous prime is 123220127. The next prime is 123220157. The reversal of 123220132 is 231022321.

123220132 is an admirable number.

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, 2200332 + ... + 2200387.

Almost surely, 2^123220132 is an apocalyptic number.

It is an amenable number.

123220132 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.

123220132 is a wasteful number, since it uses less digits than its factorization.

123220132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4400730 (or 4400728 counting only the distinct ones).

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

The square root of 123220132 is about 11100.4563870140. The cubic root of 123220132 is about 497.6154889583.

Adding to 123220132 its reverse (231022321), we get a palindrome (354242453).

The spelling of 123220132 in words is "one hundred twenty-three million, two hundred twenty thousand, one hundred thirty-two".