201011110001 has 4 divisors (see below), whose sum is σ = 216473503092. Its totient is φ = 185548716912.

The previous prime is 201011109983. The next prime is 201011110019. The reversal of 201011110001 is 100011110102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (201011109983) and next prime (201011110019).

It can be written as a sum of positive squares in 2 ways, for example, as 11828737600 + 189182372401 = 108760^2 + 434951^2 .

It is a de Polignac number, because none of the positive numbers 2^k-201011110001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (201011110051) 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 3 ways as a sum of consecutive naturals, for example, 7731196526 + ... + 7731196551.

It is an arithmetic number, because the mean of its divisors is an integer number (54118375773).

Almost surely, 2^201011110001 is an apocalyptic number.

It is an amenable number.

201011110001 is a deficient number, since it is larger than the sum of its proper divisors (15462393091).

201011110001 is a wasteful number, since it uses less digits than its factorization.

201011110001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15462393090.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 201011110001 its reverse (100011110102), we get a palindrome (301022220103).

The spelling of 201011110001 in words is "two hundred one billion, eleven million, one hundred ten thousand, one".