120422143 has 4 divisors (see below), whose sum is σ = 121341528. Its totient is φ = 119502760.

The previous prime is 120422129. The next prime is 120422147. The reversal of 120422143 is 341224021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120422143 - 2⁵ = 120422111 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 120422143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120422147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 459496 + ... + 459757.

It is an arithmetic number, because the mean of its divisors is an integer number (30335382).

Almost surely, 2^120422143 is an apocalyptic number.

120422143 is a deficient number, since it is larger than the sum of its proper divisors (919385).

120422143 is an equidigital number, since it uses as much as digits as its factorization.

120422143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919384.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 120422143 is about 10973.7023378621. The cubic root of 120422143 is about 493.8201236087.

Adding to 120422143 its reverse (341224021), we get a palindrome (461646164).

The spelling of 120422143 in words is "one hundred twenty million, four hundred twenty-two thousand, one hundred forty-three".