123983640333 has 16 divisors (see below), whose sum is σ = 209919391360. Its totient is φ = 70847794368.

The previous prime is 123983640331. The next prime is 123983640343. The reversal of 123983640333 is 333046389321.

123983640333 is a `hidden beast` number, since 1 + 239 + 8 + 3 + 6 + 403 + 3 + 3 = 666.

It is not a de Polignac number, because 123983640333 - 2¹ = 123983640331 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123983640331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 327998860 + ... + 327999237.

It is an arithmetic number, because the mean of its divisors is an integer number (13119961960).

Almost surely, 2^123983640333 is an apocalyptic number.

It is an amenable number.

123983640333 is a deficient number, since it is larger than the sum of its proper divisors (85935751027).

123983640333 is an equidigital number, since it uses as much as digits as its factorization.

123983640333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655998113 (or 655998107 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 45.

The spelling of 123983640333 in words is "one hundred twenty-three billion, nine hundred eighty-three million, six hundred forty thousand, three hundred thirty-three".