120320543 has 16 divisors (see below), whose sum is σ = 147780864. Its totient is φ = 95610240.

The previous prime is 120320513. The next prime is 120320573. The reversal of 120320543 is 345023021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (120320513) and next prime (120320573).

It is a cyclic number.

It is not a de Polignac number, because 120320543 - 2⁸ = 120320287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120320513) 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 15 ways as a sum of consecutive naturals, for example, 428 + ... + 15518.

It is an arithmetic number, because the mean of its divisors is an integer number (9236304).

Almost surely, 2^120320543 is an apocalyptic number.

120320543 is a deficient number, since it is larger than the sum of its proper divisors (27460321).

120320543 is a wasteful number, since it uses less digits than its factorization.

120320543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15182.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 120320543 is about 10969.0721120795. The cubic root of 120320543 is about 493.6812060753.

Adding to 120320543 its reverse (345023021), we get a palindrome (465343564).

The spelling of 120320543 in words is "one hundred twenty million, three hundred twenty thousand, five hundred forty-three".