123320984 has 8 divisors (see below), whose sum is σ = 231226860. Its totient is φ = 61660488.

The previous prime is 123320971. The next prime is 123320987. The reversal of 123320984 is 489023321.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 123320984.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123320987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7707554 + ... + 7707569.

Almost surely, 2^123320984 is an apocalyptic number.

It is an amenable number.

123320984 is a deficient number, since it is larger than the sum of its proper divisors (107905876).

123320984 is a wasteful number, since it uses less digits than its factorization.

123320984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15415129 (or 15415125 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 123320984 is about 11104.9981539845. The cubic root of 123320984 is about 497.7512130777.

The spelling of 123320984 in words is "one hundred twenty-three million, three hundred twenty thousand, nine hundred eighty-four".