11201123331 has 24 divisors (see below), whose sum is σ = 16970251584. Its totient is φ = 7110996480.

The previous prime is 11201123321. The next prime is 11201123347. The reversal of 11201123331 is 13332110211.

11201123331 is a `hidden beast` number, since 11 + 201 + 123 + 331 = 666.

It is not a de Polignac number, because 11201123331 - 2⁷ = 11201123203 is a prime.

It is a super-2 number, since 2×11201123331² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11201123321) 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, 342190 + ... + 373491.

It is an arithmetic number, because the mean of its divisors is an integer number (707093816).

Almost surely, 2^11201123331 is an apocalyptic number.

11201123331 is a deficient number, since it is larger than the sum of its proper divisors (5769128253).

11201123331 is a wasteful number, since it uses less digits than its factorization.

11201123331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715771 (or 715768 counting only the distinct ones).

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

Adding to 11201123331 its reverse (13332110211), we get a palindrome (24533233542).

The spelling of 11201123331 in words is "eleven billion, two hundred one million, one hundred twenty-three thousand, three hundred thirty-one".