11020203 has 12 divisors (see below), whose sum is σ = 16467360. Its totient is φ = 7093296.

The previous prime is 11020193. The next prime is 11020213. The reversal of 11020203 is 30202011.

It is a happy number.

11020203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11020193) and next prime (11020213).

It is not a de Polignac number, because 11020203 - 2¹³ = 11012011 is a prime.

It is a super-2 number, since 2×11020203² = 242889748322418, 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 (11020213) 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, 20851 + ... + 21372.

It is an arithmetic number, because the mean of its divisors is an integer number (1372280).

Almost surely, 2^11020203 is an apocalyptic number.

11020203 is a deficient number, since it is larger than the sum of its proper divisors (5447157).

11020203 is a wasteful number, since it uses less digits than its factorization.

11020203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42258 (or 42255 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 11020203 is about 3319.6691100168. The cubic root of 11020203 is about 222.5340805432.

Adding to 11020203 its reverse (30202011), we get a palindrome (41222214).

The spelling of 11020203 in words is "eleven million, twenty thousand, two hundred three".