111311201 has 4 divisors (see below), whose sum is σ = 111360000. Its totient is φ = 111262404.

The previous prime is 111311197. The next prime is 111311231. The reversal of 111311201 is 102113111.

It is a happy number.

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 111311201 - 2² = 111311197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111311231) 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, 20801 + ... + 25598.

It is an arithmetic number, because the mean of its divisors is an integer number (27840000).

Almost surely, 2^111311201 is an apocalyptic number.

It is an amenable number.

111311201 is a deficient number, since it is larger than the sum of its proper divisors (48799).

111311201 is an equidigital number, since it uses as much as digits as its factorization.

111311201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48798.

The product of its (nonzero) digits is 6, while the sum is 11.

The square root of 111311201 is about 10550.4123616094. The cubic root of 111311201 is about 481.0382632730.

Adding to 111311201 its reverse (102113111), we get a palindrome (213424312).

The spelling of 111311201 in words is "one hundred eleven million, three hundred eleven thousand, two hundred one".