120203343 has 24 divisors (see below), whose sum is σ = 192043488. Its totient is φ = 71969472.

The previous prime is 120203309. The next prime is 120203357. The reversal of 120203343 is 343302021.

120203343 is a `hidden beast` number, since 120 + 203 + 343 = 666.

It is not a de Polignac number, because 120203343 - 2¹⁴ = 120186959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120203383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9555 + ... + 18212.

It is an arithmetic number, because the mean of its divisors is an integer number (8001812).

Almost surely, 2^120203343 is an apocalyptic number.

120203343 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

120203343 is a deficient number, since it is larger than the sum of its proper divisors (71840145).

120203343 is a wasteful number, since it uses less digits than its factorization.

120203343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27823 (or 27820 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 120203343 is about 10963.7285172518. The cubic root of 120203343 is about 493.5208615147.

Adding to 120203343 its reverse (343302021), we get a palindrome (463505364).

The spelling of 120203343 in words is "one hundred twenty million, two hundred three thousand, three hundred forty-three".