120243403 has 12 divisors (see below), whose sum is σ = 140110560. Its totient is φ = 102892272.

The previous prime is 120243373. The next prime is 120243407. The reversal of 120243403 is 304342021.

It is not a de Polignac number, because 120243403 - 2²¹ = 118146251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120243407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33525 + ... + 36937.

It is an arithmetic number, because the mean of its divisors is an integer number (11675880).

Almost surely, 2^120243403 is an apocalyptic number.

120243403 is a deficient number, since it is larger than the sum of its proper divisors (19867157).

120243403 is an equidigital number, since it uses as much as digits as its factorization.

120243403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4146 (or 4139 counting only the distinct ones).

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

The square root of 120243403 is about 10965.5552982966. Note that the first 3 decimals coincide. The cubic root of 120243403 is about 493.5756804277.

Adding to 120243403 its reverse (304342021), we get a palindrome (424585424).

The spelling of 120243403 in words is "one hundred twenty million, two hundred forty-three thousand, four hundred three".