123819793318 has 16 divisors (see below), whose sum is σ = 211782271680. Its totient is φ = 53785973376.

The previous prime is 123819793291. The next prime is 123819793379. The reversal of 123819793318 is 813397918321.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 140067198 + ... + 140068081.

It is an arithmetic number, because the mean of its divisors is an integer number (13236391980).

Almost surely, 2^123819793318 is an apocalyptic number.

123819793318 is a deficient number, since it is larger than the sum of its proper divisors (87962478362).

123819793318 is a wasteful number, since it uses less digits than its factorization.

123819793318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280135311.

The product of its digits is 1959552, while the sum is 55.

The spelling of 123819793318 in words is "one hundred twenty-three billion, eight hundred nineteen million, seven hundred ninety-three thousand, three hundred eighteen".