20301311000 has 128 divisors (see below), whose sum is σ = 49179087360. Its totient is φ = 7835904000.

The previous prime is 20301310999. The next prime is 20301311029. The reversal of 20301311000 is 11310302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14166284 + ... + 14167716.

It is an arithmetic number, because the mean of its divisors is an integer number (384211620).

Almost surely, 2^20301311000 is an apocalyptic number.

20301311000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20301311000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24589543680).

20301311000 is an abundant number, since it is smaller than the sum of its proper divisors (28877776360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20301311000 is a wasteful number, since it uses less digits than its factorization.

20301311000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1942 (or 1928 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 20301311000 its reverse (11310302), we get a palindrome (20312621302).

The spelling of 20301311000 in words is "twenty billion, three hundred one million, three hundred eleven thousand".