120420343 has 4 divisors (see below), whose sum is σ = 121051008. Its totient is φ = 119789680.

The previous prime is 120420329. The next prime is 120420361. The reversal of 120420343 is 343024021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 343024021 = 31 ⋅11065291.

It is a cyclic number.

It is not a de Polignac number, because 120420343 - 2¹³ = 120412151 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 120420343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120420323) 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, 315046 + ... + 315427.

It is an arithmetic number, because the mean of its divisors is an integer number (30262752).

Almost surely, 2^120420343 is an apocalyptic number.

120420343 is a deficient number, since it is larger than the sum of its proper divisors (630665).

120420343 is an equidigital number, since it uses as much as digits as its factorization.

120420343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630664.

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

The square root of 120420343 is about 10973.6203233026. The cubic root of 120420343 is about 493.8176631514.

Adding to 120420343 its reverse (343024021), we get a palindrome (463444364).

The spelling of 120420343 in words is "one hundred twenty million, four hundred twenty thousand, three hundred forty-three".