11311233201 has 8 divisors (see below), whose sum is σ = 16757382560. Its totient is φ = 7540822116.

The previous prime is 11311233187. The next prime is 11311233209. The reversal of 11311233201 is 10233211311.

11311233201 is a `hidden beast` number, since 11 + 311 + 23 + 320 + 1 = 666.

It is not a de Polignac number, because 11311233201 - 2⁶ = 11311233137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11311233209) 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, 209467255 + ... + 209467308.

It is an arithmetic number, because the mean of its divisors is an integer number (2094672820).

Almost surely, 2^11311233201 is an apocalyptic number.

It is an amenable number.

11311233201 is a deficient number, since it is larger than the sum of its proper divisors (5446149359).

11311233201 is an equidigital number, since it uses as much as digits as its factorization.

11311233201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418934572 (or 418934566 counting only the distinct ones).

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

Adding to 11311233201 its reverse (10233211311), we get a palindrome (21544444512).

The spelling of 11311233201 in words is "eleven billion, three hundred eleven million, two hundred thirty-three thousand, two hundred one".