1120203 has 16 divisors (see below), whose sum is σ = 1896960.
Its totient is φ = 640008.
The previous prime is 1120187. The next prime is 1120211. The reversal of 1120203 is 3020211.
It is a happy number.
It is not a de Polignac number, because 1120203 - 24 = 1120187 is a prime.
It is a super-2 number, since 2×11202032 = 2509709522418, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (9).
It is not an unprimeable number, because it can be changed into a prime (1120303) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2775 + ... + 3152.
It is an arithmetic number, because the mean of its divisors is an integer number (118560).
21120203 is an apocalyptic number.
1120203 is a deficient number, since it is larger than the sum of its proper divisors (776757).
1120203 is an equidigital number, since it uses as much as digits as its factorization.
1120203 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5943 (or 5937 counting only the distinct ones).
The product of its (nonzero) digits is 12, while the sum is 9.
The square root of 1120203 is about 1058.3964285654.
The cubic root of 1120203 is about 103.8561559217.
Adding to 1120203 its reverse (3020211), we get a palindrome (4140414).
The spelling of 1120203 in words is "one million, one hundred twenty thousand, two hundred three".