201111102 has 24 divisors (see below), whose sum is σ = 436143240. Its totient is φ = 66975120.

The previous prime is 201111089. The next prime is 201111107.

It is a happy number.

201111102 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201111107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17577 + ... + 26667.

It is an arithmetic number, because the mean of its divisors is an integer number (18172635).

Almost surely, 2^201111102 is an apocalyptic number.

201111102 is an abundant number, since it is smaller than the sum of its proper divisors (235032138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201111102 is a wasteful number, since it uses less digits than its factorization.

201111102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10328 (or 10325 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 201111102 is about 14181.3646028864. The cubic root of 201111102 is about 585.8845089955.

The spelling of 201111102 in words is "two hundred one million, one hundred eleven thousand, one hundred two".