1103128705 has 8 divisors (see below), whose sum is σ = 1512862272. Its totient is φ = 756431088.

The previous prime is 1103128679. The next prime is 1103128711. The reversal of 1103128705 is 5078213011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1103128705 - 2¹⁹ = 1102604417 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15758947 + ... + 15759016.

It is an arithmetic number, because the mean of its divisors is an integer number (189107784).

Almost surely, 2^1103128705 is an apocalyptic number.

It is an amenable number.

1103128705 is a deficient number, since it is larger than the sum of its proper divisors (409733567).

1103128705 is an equidigital number, since it uses as much as digits as its factorization.

1103128705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31517975.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 1103128705 is about 33213.3814147250. The cubic root of 1103128705 is about 1033.2578859818.

The spelling of 1103128705 in words is "one billion, one hundred three million, one hundred twenty-eight thousand, seven hundred five".