123120196 has 24 divisors (see below), whose sum is σ = 232585920. Its totient is φ = 56851872.

The previous prime is 123120191. The next prime is 123120199. The reversal of 123120196 is 691021321.

It is a self number, because there is not a number n which added to its sum of digits gives 123120196.

It is not an unprimeable number, because it can be changed into a prime (123120191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20406 + ... + 25741.

It is an arithmetic number, because the mean of its divisors is an integer number (9691080).

Almost surely, 2^123120196 is an apocalyptic number.

It is an amenable number.

123120196 is a deficient number, since it is larger than the sum of its proper divisors (109465724).

123120196 is a wasteful number, since it uses less digits than its factorization.

123120196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46203 (or 46201 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 123120196 is about 11095.9540373958. The cubic root of 123120196 is about 497.4809244978.

The spelling of 123120196 in words is "one hundred twenty-three million, one hundred twenty thousand, one hundred ninety-six".