11201133231 has 24 divisors (see below), whose sum is σ = 16494732800. Its totient is φ = 7322893776.

The previous prime is 11201133227. The next prime is 11201133241. The reversal of 11201133231 is 13233110211.

It is not a de Polignac number, because 11201133231 - 2² = 11201133227 is a prime.

It is a super-3 number, since 3×11201133231³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11201133221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92820 + ... + 176118.

Almost surely, 2^11201133231 is an apocalyptic number.

11201133231 is a deficient number, since it is larger than the sum of its proper divisors (5293599569).

11201133231 is a wasteful number, since it uses less digits than its factorization.

11201133231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83595 (or 83592 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 11201133231 its reverse (13233110211), we get a palindrome (24434243442).

The spelling of 11201133231 in words is "eleven billion, two hundred one million, one hundred thirty-three thousand, two hundred thirty-one".