42399190123 has 8 divisors (see below), whose sum is σ = 42520924688. Its totient is φ = 42277499424.

The previous prime is 42399190117. The next prime is 42399190133. The reversal of 42399190123 is 32109199324.

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

It is a cyclic number.

It is not a de Polignac number, because 42399190123 - 2⁹ = 42399189611 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42399190123.

It is not an unprimeable number, because it can be changed into a prime (42399190133) 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 7 ways as a sum of consecutive naturals, for example, 3420565 + ... + 3432937.

It is an arithmetic number, because the mean of its divisors is an integer number (5315115586).

Almost surely, 2^42399190123 is an apocalyptic number.

42399190123 is a deficient number, since it is larger than the sum of its proper divisors (121734565).

42399190123 is a wasteful number, since it uses less digits than its factorization.

42399190123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21933.

The product of its (nonzero) digits is 104976, while the sum is 43.

The spelling of 42399190123 in words is "forty-two billion, three hundred ninety-nine million, one hundred ninety thousand, one hundred twenty-three".