120042343 has 4 divisors (see below), whose sum is σ = 120097120. Its totient is φ = 119987568.

The previous prime is 120042311. The next prime is 120042347. The reversal of 120042343 is 343240021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 343240021 = 163 ⋅2105767.

It is a cyclic number.

It is not a de Polignac number, because 120042343 - 2⁵ = 120042311 is a prime.

It is a super-2 number, since 2×120042343² = 28820328225859298, which contains 22 as substring.

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 120042343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120042347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23958 + ... + 28531.

It is an arithmetic number, because the mean of its divisors is an integer number (30024280).

Almost surely, 2^120042343 is an apocalyptic number.

120042343 is a deficient number, since it is larger than the sum of its proper divisors (54777).

120042343 is an equidigital number, since it uses as much as digits as its factorization.

120042343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54776.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 120042343 is about 10956.3836643301. The cubic root of 120042343 is about 493.3004229426.

Adding to 120042343 its reverse (343240021), we get a palindrome (463282364).

The spelling of 120042343 in words is "one hundred twenty million, forty-two thousand, three hundred forty-three".