11124020203 has 4 divisors (see below), whose sum is σ = 11124389808. Its totient is φ = 11123650600.

The previous prime is 11124020183. The next prime is 11124020221. The reversal of 11124020203 is 30202042111.

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

It is a cyclic number.

It is not a de Polignac number, because 11124020203 - 2²¹ = 11121923051 is a prime.

It is a super-2 number, since 2×11124020203² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11124020503) 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, 135223 + ... + 201328.

It is an arithmetic number, because the mean of its divisors is an integer number (2781097452).

Almost surely, 2^11124020203 is an apocalyptic number.

11124020203 is a deficient number, since it is larger than the sum of its proper divisors (369605).

11124020203 is an equidigital number, since it uses as much as digits as its factorization.

11124020203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369604.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 11124020203 its reverse (30202042111), we get a palindrome (41326062314).

The spelling of 11124020203 in words is "eleven billion, one hundred twenty-four million, twenty thousand, two hundred three".