1103312440 has 16 divisors (see below), whose sum is σ = 2482453080. Its totient is φ = 441324960.

The previous prime is 1103312407. The next prime is 1103312473. The reversal of 1103312440 is 442133011.

It is an interprime number because it is at equal distance from previous prime (1103312407) and next prime (1103312473).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13791366 + ... + 13791445.

Almost surely, 2^1103312440 is an apocalyptic number.

1103312440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1103312440 is an abundant number, since it is smaller than the sum of its proper divisors (1379140640).

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

1103312440 is a wasteful number, since it uses less digits than its factorization.

1103312440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27582822 (or 27582818 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1103312440 is about 33216.1472780935. The cubic root of 1103312440 is about 1033.3152486140.

Adding to 1103312440 its reverse (442133011), we get a palindrome (1545445451).

The spelling of 1103312440 in words is "one billion, one hundred three million, three hundred twelve thousand, four hundred forty".