201043011 has 16 divisors (see below), whose sum is σ = 289197216. Its totient is φ = 123495936.

The previous prime is 201042997. The next prime is 201043021. The reversal of 201043011 is 110340102.

It is a happy number.

It is not a de Polignac number, because 201043011 - 2⁷ = 201042883 is a prime.

It is a super-2 number, since 2×201043011² = 80836584543892242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201043021) 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 15 ways as a sum of consecutive naturals, for example, 18781 + ... + 27473.

It is an arithmetic number, because the mean of its divisors is an integer number (18074826).

Almost surely, 2^201043011 is an apocalyptic number.

201043011 is a deficient number, since it is larger than the sum of its proper divisors (88154205).

201043011 is a wasteful number, since it uses less digits than its factorization.

201043011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9302.

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

The square root of 201043011 is about 14178.9636786332. The cubic root of 201043011 is about 585.8183797683.

Adding to 201043011 its reverse (110340102), we get a palindrome (311383113).

The spelling of 201043011 in words is "two hundred one million, forty-three thousand, eleven".