123312032 has 12 divisors (see below), whose sum is σ = 242770626. Its totient is φ = 61656000.

The previous prime is 123312029. The next prime is 123312037. The reversal of 123312032 is 230213321.

It can be written as a sum of positive squares in only one way, i.e., 122855056 + 456976 = 11084^2 + 676^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 123312032.

It is not an unprimeable number, because it can be changed into a prime (123312037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1926719 + ... + 1926782.

Almost surely, 2^123312032 is an apocalyptic number.

It is an amenable number.

123312032 is a deficient number, since it is larger than the sum of its proper divisors (119458594).

123312032 is an equidigital number, since it uses as much as digits as its factorization.

123312032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3853511 (or 3853503 counting only the distinct ones).

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

The square root of 123312032 is about 11104.5950849187. The cubic root of 123312032 is about 497.7391686915.

Adding to 123312032 its reverse (230213321), we get a palindrome (353525353).

The spelling of 123312032 in words is "one hundred twenty-three million, three hundred twelve thousand, thirty-two".