201311092 has 6 divisors (see below), whose sum is σ = 352294418. Its totient is φ = 100655544.

The previous prime is 201311087. The next prime is 201311101. The reversal of 201311092 is 290113102.

201311092 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 161696656 + 39614436 = 12716^2 + 6294^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 25163883 + ... + 25163890.

Almost surely, 2^201311092 is an apocalyptic number.

It is an amenable number.

201311092 is a deficient number, since it is larger than the sum of its proper divisors (150983326).

201311092 is a wasteful number, since it uses less digits than its factorization.

201311092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50327777 (or 50327775 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 201311092 is about 14188.4140058006. The cubic root of 201311092 is about 586.0786508138.

Adding to 201311092 its reverse (290113102), we get a palindrome (491424194).

The spelling of 201311092 in words is "two hundred one million, three hundred eleven thousand, ninety-two".