201101043 has 48 divisors (see below), whose sum is σ = 320651136. Its totient is φ = 111121920.

The previous prime is 201101009. The next prime is 201101059. The reversal of 201101043 is 340101102.

It is a happy number.

It is not a de Polignac number, because 201101043 - 2⁸ = 201100787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201101003) 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 47 ways as a sum of consecutive naturals, for example, 596571 + ... + 596907.

It is an arithmetic number, because the mean of its divisors is an integer number (6680232).

Almost surely, 2^201101043 is an apocalyptic number.

201101043 is a deficient number, since it is larger than the sum of its proper divisors (119550093).

201101043 is a wasteful number, since it uses less digits than its factorization.

201101043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484 (or 471 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 201101043 is about 14181.0099428778. The cubic root of 201101043 is about 585.8747407455.

Adding to 201101043 its reverse (340101102), we get a palindrome (541202145).

The spelling of 201101043 in words is "two hundred one million, one hundred one thousand, forty-three".