11203312033 has 16 divisors (see below), whose sum is σ = 11677658832. Its totient is φ = 10738944000.

The previous prime is 11203312031. The next prime is 11203312039. The reversal of 11203312033 is 33021330211.

It can be written as a sum of positive squares in 8 ways, for example, as 2671649344 + 8531662689 = 51688^2 + 92367^2 .

It is a cyclic number.

It is not a de Polignac number, because 11203312033 - 2¹ = 11203312031 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11203312033.

It is not an unprimeable number, because it can be changed into a prime (11203312031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2951785 + ... + 2955577.

It is an arithmetic number, because the mean of its divisors is an integer number (729853677).

Almost surely, 2^11203312033 is an apocalyptic number.

It is an amenable number.

11203312033 is a deficient number, since it is larger than the sum of its proper divisors (474346799).

11203312033 is a wasteful number, since it uses less digits than its factorization.

11203312033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5076.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 11203312033 its reverse (33021330211), we get a palindrome (44224642244).

The spelling of 11203312033 in words is "eleven billion, two hundred three million, three hundred twelve thousand, thirty-three".