11203113233 has 8 divisors (see below), whose sum is σ = 12065803176. Its totient is φ = 10340553600.

The previous prime is 11203113199. The next prime is 11203113269. The reversal of 11203113233 is 33231130211.

It can be written as a sum of positive squares in 4 ways, for example, as 878114689 + 10324998544 = 29633^2 + 101612^2 .

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

It is not a de Polignac number, because 11203113233 - 2¹⁰ = 11203112209 is a prime.

It is a super-2 number, since 2×11203113233² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11203113283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216653 + ... + 263333.

It is an arithmetic number, because the mean of its divisors is an integer number (1508225397).

Almost surely, 2^11203113233 is an apocalyptic number.

11203113233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11203113233 is a deficient number, since it is larger than the sum of its proper divisors (862689943).

11203113233 is a wasteful number, since it uses less digits than its factorization.

11203113233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65155.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 11203113233 its reverse (33231130211), we get a palindrome (44434243444).

The spelling of 11203113233 in words is "eleven billion, two hundred three million, one hundred thirteen thousand, two hundred thirty-three".