201010043 has 4 divisors (see below), whose sum is σ = 216472368. Its totient is φ = 185547720.

The previous prime is 201010037. The next prime is 201010081. The reversal of 201010043 is 340010102.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 340010102 = 2 ⋅170005051.

It is a cyclic number.

It is not a de Polignac number, because 201010043 - 2⁴ = 201010027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201016043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7731143 + ... + 7731168.

It is an arithmetic number, because the mean of its divisors is an integer number (54118092).

Almost surely, 2^201010043 is an apocalyptic number.

201010043 is a deficient number, since it is larger than the sum of its proper divisors (15462325).

201010043 is a wasteful number, since it uses less digits than its factorization.

201010043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15462324.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 201010043 is about 14177.8010636347. The cubic root of 201010043 is about 585.7863562459.

Adding to 201010043 its reverse (340010102), we get a palindrome (541020145).

The spelling of 201010043 in words is "two hundred one million, ten thousand, forty-three".