123001019798 has 8 divisors (see below), whose sum is σ = 192523335408. Its totient is φ = 58826574664.

The previous prime is 123001019789. The next prime is 123001019861. The reversal of 123001019798 is 897910100321.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1336967561 + ... + 1336967652.

It is an arithmetic number, because the mean of its divisors is an integer number (24065416926).

Almost surely, 2^123001019798 is an apocalyptic number.

123001019798 is a deficient number, since it is larger than the sum of its proper divisors (69522315610).

123001019798 is a wasteful number, since it uses less digits than its factorization.

123001019798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2673935238.

The product of its (nonzero) digits is 27216, while the sum is 41.

The spelling of 123001019798 in words is "one hundred twenty-three billion, one million, nineteen thousand, seven hundred ninety-eight".