201000010111 has 4 divisors (see below), whose sum is σ = 205902449424. Its totient is φ = 196097570800.

The previous prime is 201000010097. The next prime is 201000010139. The reversal of 201000010111 is 111010000102.

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

It is a cyclic number.

It is not a de Polignac number, because 201000010111 - 2¹¹ = 201000008063 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201000010094 and 201000010103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201000010411) 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, 2451219595 + ... + 2451219676.

It is an arithmetic number, because the mean of its divisors is an integer number (51475612356).

Almost surely, 2^201000010111 is an apocalyptic number.

201000010111 is a deficient number, since it is larger than the sum of its proper divisors (4902439313).

201000010111 is an equidigital number, since it uses as much as digits as its factorization.

201000010111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4902439312.

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 201000010111 its reverse (111010000102), we get a palindrome (312010010213).

The spelling of 201000010111 in words is "two hundred one billion, ten thousand, one hundred eleven".