20020113311 has 8 divisors (see below), whose sum is σ = 22252202064. Its totient is φ = 17856704320.

The previous prime is 20020113299. The next prime is 20020113313. The reversal of 20020113311 is 11331102002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20020113311 - 2¹⁸ = 20019851167 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 (20020113313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17169326 + ... + 17170491.

It is an arithmetic number, because the mean of its divisors is an integer number (2781525258).

Almost surely, 2^20020113311 is an apocalyptic number.

20020113311 is a deficient number, since it is larger than the sum of its proper divisors (2232088753).

20020113311 is a wasteful number, since it uses less digits than its factorization.

20020113311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34339881.

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

Adding to 20020113311 its reverse (11331102002), we get a palindrome (31351215313).

It can be divided in two parts, 20020 and 113311, that added together give a palindrome (133331).

The spelling of 20020113311 in words is "twenty billion, twenty million, one hundred thirteen thousand, three hundred eleven".