1103123105 has 16 divisors (see below), whose sum is σ = 1518251904. Its totient is φ = 753728640.

The previous prime is 1103123051. The next prime is 1103123107. The reversal of 1103123105 is 5013213011.

It is not a de Polignac number, because 1103123105 - 2¹⁰ = 1103122081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1103123107) 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, 46247 + ... + 65916.

It is an arithmetic number, because the mean of its divisors is an integer number (94890744).

Almost surely, 2^1103123105 is an apocalyptic number.

It is an amenable number.

1103123105 is a deficient number, since it is larger than the sum of its proper divisors (415128799).

1103123105 is a wasteful number, since it uses less digits than its factorization.

1103123105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112456.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 1103123105 is about 33213.2971112475. The cubic root of 1103123105 is about 1033.2561375446.

Adding to 1103123105 its reverse (5013213011), we get a palindrome (6116336116).

The spelling of 1103123105 in words is "one billion, one hundred three million, one hundred twenty-three thousand, one hundred five".