2103315544 has 64 divisors (see below), whose sum is σ = 4399920000. Its totient is φ = 934533120.

The previous prime is 2103315541. The next prime is 2103315581. The reversal of 2103315544 is 4455133012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103315541) 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, 1001007 + ... + 1003105.

It is an arithmetic number, because the mean of its divisors is an integer number (68748750).

Almost surely, 2^2103315544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2103315544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2199960000).

2103315544 is an abundant number, since it is smaller than the sum of its proper divisors (2296604456).

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

2103315544 is a wasteful number, since it uses less digits than its factorization.

2103315544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2368 (or 2364 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 2103315544 is about 45861.9182328869. The cubic root of 2103315544 is about 1281.2527497573.

Adding to 2103315544 its reverse (4455133012), we get a palindrome (6558448556).

The spelling of 2103315544 in words is "two billion, one hundred three million, three hundred fifteen thousand, five hundred forty-four".