123917650803 has 12 divisors (see below), whose sum is σ = 178998110928. Its totient is φ = 82609021680.

The previous prime is 123917650793. The next prime is 123917650817. The reversal of 123917650803 is 308056719321.

123917650803 is a `hidden beast` number, since 123 + 9 + 17 + 6 + 508 + 0 + 3 = 666.

It is not a de Polignac number, because 123917650803 - 2⁵ = 123917650771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123917650403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78826 + ... + 504032.

It is an arithmetic number, because the mean of its divisors is an integer number (14916509244).

Almost surely, 2^123917650803 is an apocalyptic number.

123917650803 is a deficient number, since it is larger than the sum of its proper divisors (55080460125).

123917650803 is a wasteful number, since it uses less digits than its factorization.

123917650803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457594 (or 457591 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 123917650803 in words is "one hundred twenty-three billion, nine hundred seventeen million, six hundred fifty thousand, eight hundred three".