2103551304 has 64 divisors (see below), whose sum is σ = 5585112000. Its totient is φ = 657936384.

The previous prime is 2103551231. The next prime is 2103551309. The reversal of 2103551304 is 4031553012.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (2103551309) 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, 129847 + ... + 145145.

It is an arithmetic number, because the mean of its divisors is an integer number (87267375).

Almost surely, 2^2103551304 is an apocalyptic number.

2103551304 is a gapful number since it is divisible by the number (24) 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 2103551304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2792556000).

2103551304 is an abundant number, since it is smaller than the sum of its proper divisors (3481560696).

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

2103551304 is a wasteful number, since it uses less digits than its factorization.

2103551304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15662 (or 15658 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 2103551304 is about 45864.4884851014. The cubic root of 2103551304 is about 1281.3006197126.

The spelling of 2103551304 in words is "two billion, one hundred three million, five hundred fifty-one thousand, three hundred four".