111641201 has 16 divisors (see below), whose sum is σ = 131015808. Its totient is φ = 93139200.

The previous prime is 111641197. The next prime is 111641239. The reversal of 111641201 is 102146111.

It is not a de Polignac number, because 111641201 - 2² = 111641197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111641201.

It is not an unprimeable number, because it can be changed into a prime (111641281) 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 15 ways as a sum of consecutive naturals, for example, 126281 + ... + 127161.

It is an arithmetic number, because the mean of its divisors is an integer number (8188488).

Almost surely, 2^111641201 is an apocalyptic number.

It is an amenable number.

111641201 is a deficient number, since it is larger than the sum of its proper divisors (19374607).

111641201 is an equidigital number, since it uses as much as digits as its factorization.

111641201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1352.

The product of its (nonzero) digits is 48, while the sum is 17.

The square root of 111641201 is about 10566.0399866743. The cubic root of 111641201 is about 481.5131660998.

Adding to 111641201 its reverse (102146111), we get a palindrome (213787312).

The spelling of 111641201 in words is "one hundred eleven million, six hundred forty-one thousand, two hundred one".