1103090905 has 16 divisors (see below), whose sum is σ = 1513569024. Its totient is φ = 756025920.

The previous prime is 1103090903. The next prime is 1103090929. The reversal of 1103090905 is 5090903011.

It is not a de Polignac number, because 1103090905 - 2¹ = 1103090903 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1103090903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75204 + ... + 88666.

It is an arithmetic number, because the mean of its divisors is an integer number (94598064).

Almost surely, 2^1103090905 is an apocalyptic number.

It is an amenable number.

1103090905 is a deficient number, since it is larger than the sum of its proper divisors (410478119).

1103090905 is a wasteful number, since it uses less digits than its factorization.

1103090905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15816.

The product of its (nonzero) digits is 1215, while the sum is 28.

The square root of 1103090905 is about 33212.8123620991. The cubic root of 1103090905 is about 1033.2460839155.

Adding to 1103090905 its reverse (5090903011), we get a palindrome (6193993916).

The spelling of 1103090905 in words is "one billion, one hundred three million, ninety thousand, nine hundred five".