201010111 has 8 divisors (see below), whose sum is σ = 202245120. Its totient is φ = 199779192.

The previous prime is 201010097. The next prime is 201010123. The reversal of 201010111 is 111010102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201010111 - 2²⁵ = 167455679 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201010094 and 201010103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201010171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188566 + ... + 189628.

It is an arithmetic number, because the mean of its divisors is an integer number (25280640).

Almost surely, 2^201010111 is an apocalyptic number.

201010111 is a deficient number, since it is larger than the sum of its proper divisors (1235009).

201010111 is a wasteful number, since it uses less digits than its factorization.

201010111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2045.

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

The square root of 201010111 is about 14177.8034617496. The cubic root of 201010111 is about 585.7864223014.

Adding to 201010111 its reverse (111010102), we get a palindrome (312020213).

Subtracting from 201010111 its reverse (111010102), we obtain a palindrome (90000009).

It can be divided in two parts, 2010 and 10111, that added together give a palindrome (12121).

The spelling of 201010111 in words is "two hundred one million, ten thousand, one hundred eleven".