123819793317 has 24 divisors (see below), whose sum is σ = 201628808640. Its totient is φ = 75042297000.

The previous prime is 123819793291. The next prime is 123819793379. The reversal of 123819793317 is 713397918321.

123819793317 is a `hidden beast` number, since 1 + 238 + 1 + 9 + 7 + 93 + 317 = 666.

It is not a de Polignac number, because 123819793317 - 2²² = 123815599013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123819793717) 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 23 ways as a sum of consecutive naturals, for example, 18946809 + ... + 18953342.

It is an arithmetic number, because the mean of its divisors is an integer number (8401200360).

Almost surely, 2^123819793317 is an apocalyptic number.

It is an amenable number.

123819793317 is a deficient number, since it is larger than the sum of its proper divisors (77809015323).

123819793317 is a wasteful number, since it uses less digits than its factorization.

123819793317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37900182 (or 37900165 counting only the distinct ones).

The product of its digits is 1714608, while the sum is 54.

The spelling of 123819793317 in words is "one hundred twenty-three billion, eight hundred nineteen million, seven hundred ninety-three thousand, three hundred seventeen".