201102311 has 4 divisors (see below), whose sum is σ = 201442032. Its totient is φ = 200762592.

The previous prime is 201102287. The next prime is 201102313. The reversal of 201102311 is 113201102.

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 201102311 - 2²² = 196908007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201102292 and 201102301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201102313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168971 + ... + 170156.

It is an arithmetic number, because the mean of its divisors is an integer number (50360508).

Almost surely, 2^201102311 is an apocalyptic number.

201102311 is a deficient number, since it is larger than the sum of its proper divisors (339721).

201102311 is an equidigital number, since it uses as much as digits as its factorization.

201102311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339720.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 201102311 is about 14181.0546504835. The cubic root of 201102311 is about 585.8759721126.

Adding to 201102311 its reverse (113201102), we get a palindrome (314303413).

The spelling of 201102311 in words is "two hundred one million, one hundred two thousand, three hundred eleven".