1103400343440 has 120 divisors (see below), whose sum is σ = 3706427237760. Its totient is φ = 294173306112.

The previous prime is 1103400343439. The next prime is 1103400343499. The reversal of 1103400343440 is 443430043011.

It is a tau number, because it is divible by the number of its divisors (120).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3041671 + ... + 3385049.

It is an arithmetic number, because the mean of its divisors is an integer number (30886893648).

Almost surely, 2^{1103400343440} is an apocalyptic number.

1103400343440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1103400343440 is an abundant number, since it is smaller than the sum of its proper divisors (2603026894320).

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

1103400343440 is a wasteful number, since it uses less digits than its factorization.

1103400343440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347861 (or 347852 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 1103400343440 its reverse (443430043011), we get a palindrome (1546830386451).

The spelling of 1103400343440 in words is "one trillion, one hundred three billion, four hundred million, three hundred forty-three thousand, four hundred forty".