231112201 has 4 divisors (see below), whose sum is σ = 231189012. Its totient is φ = 231035392.

The previous prime is 231112199. The next prime is 231112213. The reversal of 231112201 is 102211132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 223951225 + 7160976 = 14965^2 + 2676^2 .

It is a cyclic number.

It is not a de Polignac number, because 231112201 - 2¹ = 231112199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231119201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33700 + ... + 39973.

It is an arithmetic number, because the mean of its divisors is an integer number (57797253).

Almost surely, 2^231112201 is an apocalyptic number.

It is an amenable number.

231112201 is a deficient number, since it is larger than the sum of its proper divisors (76811).

231112201 is an equidigital number, since it uses as much as digits as its factorization.

231112201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76810.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 231112201 is about 15202.3748473717. The cubic root of 231112201 is about 613.6785701732.

Adding to 231112201 its reverse (102211132), we get a palindrome (333323333).

The spelling of 231112201 in words is "two hundred thirty-one million, one hundred twelve thousand, two hundred one".