201020103311 has 4 divisors (see below), whose sum is σ = 201046781952. Its totient is φ = 200993424672.

The previous prime is 201020103307. The next prime is 201020103313. The reversal of 201020103311 is 113301020102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113301020102 = 2 ⋅56650510051.

It is a cyclic number.

It is not a de Polignac number, because 201020103311 - 2² = 201020103307 is a prime.

It is a super-2 number, since 2×201020103311² (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 (201020103313) 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, 13328015 + ... + 13343088.

It is an arithmetic number, because the mean of its divisors is an integer number (50261695488).

Almost surely, 2^201020103311 is an apocalyptic number.

201020103311 is a deficient number, since it is larger than the sum of its proper divisors (26678641).

201020103311 is an equidigital number, since it uses as much as digits as its factorization.

201020103311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26678640.

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

Adding to 201020103311 its reverse (113301020102), we get a palindrome (314321123413).

The spelling of 201020103311 in words is "two hundred one billion, twenty million, one hundred three thousand, three hundred eleven".