1103120440 has 16 divisors (see below), whose sum is σ = 2482021080. Its totient is φ = 441248160.

The previous prime is 1103120423. The next prime is 1103120441. The reversal of 1103120440 is 440213011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103120441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13788966 + ... + 13789045.

Almost surely, 2^1103120440 is an apocalyptic number.

1103120440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1103120440 is an abundant number, since it is smaller than the sum of its proper divisors (1378900640).

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

1103120440 is a wasteful number, since it uses less digits than its factorization.

1103120440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27578022 (or 27578018 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1103120440 is about 33213.2569917495. The cubic root of 1103120440 is about 1033.2553054737.

Adding to 1103120440 its reverse (440213011), we get a palindrome (1543333451).

The spelling of 1103120440 in words is "one billion, one hundred three million, one hundred twenty thousand, four hundred forty".