11311203 has 8 divisors (see below), whose sum is σ = 15449616. Its totient is φ = 7356800.

The previous prime is 11311177. The next prime is 11311217. The reversal of 11311203 is 30211311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11311203 - 2¹⁰ = 11310179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11311253) 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 7 ways as a sum of consecutive naturals, for example, 45858 + ... + 46103.

It is an arithmetic number, because the mean of its divisors is an integer number (1931202).

Almost surely, 2^11311203 is an apocalyptic number.

11311203 is a deficient number, since it is larger than the sum of its proper divisors (4138413).

11311203 is an equidigital number, since it uses as much as digits as its factorization.

11311203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92005.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 11311203 is about 3363.2131957401. The cubic root of 11311203 is about 224.4758366396.

Adding to 11311203 its reverse (30211311), we get a palindrome (41522514).

The spelling of 11311203 in words is "eleven million, three hundred eleven thousand, two hundred three".