1100403103540 has 288 divisors, whose sum is σ = 2646749347200. Its totient is φ = 381805332480.

The previous prime is 1100403103477. The next prime is 1100403103549. The reversal of 1100403103540 is 453013040011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100403103549) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1281027631 + ... + 1281028489.

It is an arithmetic number, because the mean of its divisors is an integer number (9190101900).

Almost surely, 2^{1100403103540} is an apocalyptic number.

1100403103540 is a gapful number since it is divisible by the number (10) 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 1100403103540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1323374673600).

1100403103540 is an abundant number, since it is smaller than the sum of its proper divisors (1546346243660).

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

1100403103540 is a wasteful number, since it uses less digits than its factorization.

1100403103540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075 (or 1036 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 1100403103540 its reverse (453013040011), we get a palindrome (1553416143551).

The spelling of 1100403103540 in words is "one trillion, one hundred billion, four hundred three million, one hundred three thousand, five hundred forty".