113201161 has 4 divisors (see below), whose sum is σ = 114065424. Its totient is φ = 112336900.

The previous prime is 113201159. The next prime is 113201171. The reversal of 113201161 is 161102311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 113201161 - 2¹ = 113201159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113201141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 431935 + ... + 432196.

It is an arithmetic number, because the mean of its divisors is an integer number (28516356).

Almost surely, 2^113201161 is an apocalyptic number.

It is an amenable number.

113201161 is a deficient number, since it is larger than the sum of its proper divisors (864263).

113201161 is an equidigital number, since it uses as much as digits as its factorization.

113201161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864262.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 113201161 is about 10639.6034230605. The cubic root of 113201161 is about 483.7455248224.

Adding to 113201161 its reverse (161102311), we get a palindrome (274303472).

The spelling of 113201161 in words is "one hundred thirteen million, two hundred one thousand, one hundred sixty-one".