201234311 has 4 divisors (see below), whose sum is σ = 201306672. Its totient is φ = 201161952.

The previous prime is 201234283. The next prime is 201234329. The reversal of 201234311 is 113432102.

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 201234311 - 2¹⁰ = 201233287 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201234311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201234391) 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, 31835 + ... + 37628.

It is an arithmetic number, because the mean of its divisors is an integer number (50326668).

Almost surely, 2^201234311 is an apocalyptic number.

201234311 is a deficient number, since it is larger than the sum of its proper divisors (72361).

201234311 is an equidigital number, since it uses as much as digits as its factorization.

201234311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72360.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 201234311 is about 14185.7079837419. The cubic root of 201234311 is about 586.0041302850.

Adding to 201234311 its reverse (113432102), we get a palindrome (314666413).

The spelling of 201234311 in words is "two hundred one million, two hundred thirty-four thousand, three hundred eleven".