123120219874 has 32 divisors (see below), whose sum is σ = 195780934656. Its totient is φ = 57946967760.

The previous prime is 123120219857. The next prime is 123120219899. The reversal of 123120219874 is 478912021321.

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 15 ways as a sum of consecutive naturals, for example, 3158169 + ... + 3196915.

It is an arithmetic number, because the mean of its divisors is an integer number (6118154208).

Almost surely, 2^123120219874 is an apocalyptic number.

123120219874 is a deficient number, since it is larger than the sum of its proper divisors (72660714782).

123120219874 is a wasteful number, since it uses less digits than its factorization.

123120219874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39870.

The product of its (nonzero) digits is 48384, while the sum is 40.

The spelling of 123120219874 in words is "one hundred twenty-three billion, one hundred twenty million, two hundred nineteen thousand, eight hundred seventy-four".