123120044 has 6 divisors (see below), whose sum is σ = 215460084. Its totient is φ = 61560020.

The previous prime is 123120029. The next prime is 123120047. The reversal of 123120044 is 440021321.

It is not an unprimeable number, because it can be changed into a prime (123120047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15390002 + ... + 15390009.

It is an arithmetic number, because the mean of its divisors is an integer number (35910014).

Almost surely, 2^123120044 is an apocalyptic number.

It is an amenable number.

123120044 is a deficient number, since it is larger than the sum of its proper divisors (92340040).

123120044 is a wasteful number, since it uses less digits than its factorization.

123120044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30780015 (or 30780013 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 123120044 is about 11095.9471880502. The cubic root of 123120044 is about 497.4807197733.

Adding to 123120044 its reverse (440021321), we get a palindrome (563141365).

The spelling of 123120044 in words is "one hundred twenty-three million, one hundred twenty thousand, forty-four".