2103311320 has 64 divisors (see below), whose sum is σ = 5177844000. Its totient is φ = 762593280.

The previous prime is 2103311299. The next prime is 2103311321. The reversal of 2103311320 is 231133012.

It is a junction number, because it is equal to n+sod(n) for n = 2103311294 and 2103311303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103311321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146712 + ... + 160408.

Almost surely, 2^2103311320 is an apocalyptic number.

2103311320 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 2103311320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2588922000).

2103311320 is an abundant number, since it is smaller than the sum of its proper divisors (3074532680).

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

2103311320 is a wasteful number, since it uses less digits than its factorization.

2103311320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14068 (or 14064 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 2103311320 is about 45861.8721815846. The cubic root of 2103311320 is about 1281.2518920615.

Adding to 2103311320 its reverse (231133012), we get a palindrome (2334444332).

The spelling of 2103311320 in words is "two billion, one hundred three million, three hundred eleven thousand, three hundred twenty".