1103103653 has 16 divisors (see below), whose sum is σ = 1212288000. Its totient is φ = 999698112.

The previous prime is 1103103629. The next prime is 1103103679. The reversal of 1103103653 is 3563013011.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1103103653 - 2¹⁴ = 1103087269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103102653) 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, 50876 + ... + 69242.

It is an arithmetic number, because the mean of its divisors is an integer number (75768000).

Almost surely, 2^1103103653 is an apocalyptic number.

It is an amenable number.

1103103653 is a deficient number, since it is larger than the sum of its proper divisors (109184347).

1103103653 is a wasteful number, since it uses less digits than its factorization.

1103103653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18524.

The product of its (nonzero) digits is 810, while the sum is 23.

The square root of 1103103653 is about 33213.0042754340. The cubic root of 1103103653 is about 1033.2500641769.

Adding to 1103103653 its reverse (3563013011), we get a palindrome (4666116664).

The spelling of 1103103653 in words is "one billion, one hundred three million, one hundred three thousand, six hundred fifty-three".