201102443 has 24 divisors (see below), whose sum is σ = 218906688. Its totient is φ = 184570848.

The previous prime is 201102431. The next prime is 201102449. The reversal of 201102443 is 344201102.

It is not a de Polignac number, because 201102443 - 2⁶ = 201102379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201102449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2422880 + ... + 2422962.

It is an arithmetic number, because the mean of its divisors is an integer number (9121112).

Almost surely, 2^201102443 is an apocalyptic number.

201102443 is a deficient number, since it is larger than the sum of its proper divisors (17804245).

201102443 is an equidigital number, since it uses as much as digits as its factorization.

201102443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 201102443 is about 14181.0593045795. The cubic root of 201102443 is about 585.8761002988.

Adding to 201102443 its reverse (344201102), we get a palindrome (545303545).

The spelling of 201102443 in words is "two hundred one million, one hundred two thousand, four hundred forty-three".