2103043540 has 48 divisors (see below), whose sum is σ = 4769573760. Its totient is φ = 774311040.

The previous prime is 2103043511. The next prime is 2103043559. The reversal of 2103043540 is 453403012.

It is a super-2 number, since 2×2103043540² = 8845584262271463200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82075 + ... + 104605.

It is an arithmetic number, because the mean of its divisors is an integer number (99366120).

Almost surely, 2^2103043540 is an apocalyptic number.

2103043540 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 2103043540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2384786880).

2103043540 is an abundant number, since it is smaller than the sum of its proper divisors (2666530220).

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

2103043540 is a wasteful number, since it uses less digits than its factorization.

2103043540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22912 (or 22910 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 2103043540 is about 45858.9526701167. The cubic root of 2103043540 is about 1281.1975161845.

Adding to 2103043540 its reverse (453403012), we get a palindrome (2556446552).

The spelling of 2103043540 in words is "two billion, one hundred three million, forty-three thousand, five hundred forty".