201442004311 has 4 divisors (see below), whose sum is σ = 201499025112. Its totient is φ = 201384983512.

The previous prime is 201442004273. The next prime is 201442004327. The reversal of 201442004311 is 113400244102.

It is a happy number.

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 201442004311 - 2⁹ = 201442003799 is a prime.

It is a super-2 number, since 2×201442004311² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201442004111) 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, 28505101 + ... + 28512166.

It is an arithmetic number, because the mean of its divisors is an integer number (50374756278).

Almost surely, 2^201442004311 is an apocalyptic number.

201442004311 is a deficient number, since it is larger than the sum of its proper divisors (57020801).

201442004311 is an equidigital number, since it uses as much as digits as its factorization.

201442004311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57020800.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 201442004311 its reverse (113400244102), we get a palindrome (314842248413).

The spelling of 201442004311 in words is "two hundred one billion, four hundred forty-two million, four thousand, three hundred eleven".