120343021 has 4 divisors (see below), whose sum is σ = 120367132. Its totient is φ = 120318912.

The previous prime is 120343009. The next prime is 120343033.

It is a happy number.

120343021 is nontrivially palindromic in base 10.

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

It is an interprime number because it is at equal distance from previous prime (120343009) and next prime (120343033).

It can be written as a sum of positive squares in 2 ways, for example, as 95452900 + 24890121 = 9770^2 + 4989^2 .

It is a cyclic number.

It is not a de Polignac number, because 120343021 - 2¹¹ = 120340973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120342986 and 120343004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120343081) 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, 1470 + ... + 15583.

It is an arithmetic number, because the mean of its divisors is an integer number (30091783).

Almost surely, 2^120343021 is an apocalyptic number.

It is an amenable number.

120343021 is a deficient number, since it is larger than the sum of its proper divisors (24111).

120343021 is an equidigital number, since it uses as much as digits as its factorization.

120343021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24110.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 120343021 is about 10970.0966723179. The cubic root of 120343021 is about 493.7119469472.

The spelling of 120343021 in words is "one hundred twenty million, three hundred forty-three thousand, twenty-one".