11320203 has 4 divisors (see below), whose sum is σ = 15093608. Its totient is φ = 7546800.

The previous prime is 11320189. The next prime is 11320213. The reversal of 11320203 is 30202311.

It is a happy number.

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

It is not a de Polignac number, because 11320203 - 2⁹ = 11319691 is a prime.

It is a super-2 number, since 2×11320203² = 256293991922418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11320213) 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, 1886698 + ... + 1886703.

It is an arithmetic number, because the mean of its divisors is an integer number (3773402).

Almost surely, 2^11320203 is an apocalyptic number.

11320203 is a deficient number, since it is larger than the sum of its proper divisors (3773405).

11320203 is an equidigital number, since it uses as much as digits as its factorization.

11320203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3773404.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 11320203 is about 3364.5509358605. The cubic root of 11320203 is about 224.5353571857.

Adding to 11320203 its reverse (30202311), we get a palindrome (41522514).

The spelling of 11320203 in words is "eleven million, three hundred twenty thousand, two hundred three".