120040042423 has 8 divisors (see below), whose sum is σ = 141614059520. Its totient is φ = 99572385240.

The previous prime is 120040042379. The next prime is 120040042457. The reversal of 120040042423 is 324240040021.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120040042423 is a prime.

It is a super-2 number, since 2×120040042423² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120040042394 and 120040042403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120040042523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276589743 + ... + 276590176.

It is an arithmetic number, because the mean of its divisors is an integer number (17701757440).

Almost surely, 2^120040042423 is an apocalyptic number.

120040042423 is a deficient number, since it is larger than the sum of its proper divisors (21574017097).

120040042423 is an equidigital number, since it uses as much as digits as its factorization.

120040042423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553179957.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 120040042423 its reverse (324240040021), we get a palindrome (444280082444).

The spelling of 120040042423 in words is "one hundred twenty billion, forty million, forty-two thousand, four hundred twenty-three".