201020310311 has 4 divisors (see below), whose sum is σ = 202224024912. Its totient is φ = 199816595712.

The previous prime is 201020310229. The next prime is 201020310341. The reversal of 201020310311 is 113013020102.

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 201020310311 - 2³⁰ = 199946568487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201020310341) 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, 601857050 + ... + 601857383.

It is an arithmetic number, because the mean of its divisors is an integer number (50556006228).

Almost surely, 2^201020310311 is an apocalyptic number.

201020310311 is a deficient number, since it is larger than the sum of its proper divisors (1203714601).

201020310311 is a wasteful number, since it uses less digits than its factorization.

201020310311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203714600.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 201020310311 its reverse (113013020102), we get a palindrome (314033330413).

The spelling of 201020310311 in words is "two hundred one billion, twenty million, three hundred ten thousand, three hundred eleven".