120121343 has 4 divisors (see below), whose sum is σ = 120158808. Its totient is φ = 120083880.

The previous prime is 120121333. The next prime is 120121357. The reversal of 120121343 is 343121021.

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 120121343 - 2¹⁶ = 120055807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120121333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13421 + ... + 20502.

It is an arithmetic number, because the mean of its divisors is an integer number (30039702).

Almost surely, 2^120121343 is an apocalyptic number.

120121343 is a deficient number, since it is larger than the sum of its proper divisors (37465).

120121343 is an equidigital number, since it uses as much as digits as its factorization.

120121343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37464.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 120121343 is about 10959.9882755412. The cubic root of 120121343 is about 493.4086130658.

Adding to 120121343 its reverse (343121021), we get a palindrome (463242364).

The spelling of 120121343 in words is "one hundred twenty million, one hundred twenty-one thousand, three hundred forty-three".