20103310320 has 80 divisors (see below), whose sum is σ = 62340429600. Its totient is φ = 5359148032.

The previous prime is 20103310309. The next prime is 20103310427. The reversal of 20103310320 is 2301330102.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20103310320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 841906 + ... + 865454.

It is an arithmetic number, because the mean of its divisors is an integer number (779255370).

Almost surely, 2^20103310320 is an apocalyptic number.

20103310320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20103310320 is an abundant number, since it is smaller than the sum of its proper divisors (42237119280).

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

20103310320 is a wasteful number, since it uses less digits than its factorization.

20103310320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27122 (or 27116 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 20103310320 its reverse (2301330102), we get a palindrome (22404640422).

The spelling of 20103310320 in words is "twenty billion, one hundred three million, three hundred ten thousand, three hundred twenty".