123042032 has 20 divisors (see below), whose sum is σ = 239251056. Its totient is φ = 61299840.

The previous prime is 123042013. The next prime is 123042037. The reversal of 123042032 is 230240321.

It is a self number, because there is not a number n which added to its sum of digits gives 123042032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123042037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9188 + ... + 18179.

Almost surely, 2^123042032 is an apocalyptic number.

It is an amenable number.

123042032 is a deficient number, since it is larger than the sum of its proper divisors (116209024).

123042032 is a wasteful number, since it uses less digits than its factorization.

123042032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27656 (or 27650 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 123042032 is about 11092.4312934541. The cubic root of 123042032 is about 497.3756254160.

Adding to 123042032 its reverse (230240321), we get a palindrome (353282353).

The spelling of 123042032 in words is "one hundred twenty-three million, forty-two thousand, thirty-two".