1103253563 has 4 divisors (see below), whose sum is σ = 1161319560. Its totient is φ = 1045187568.

The previous prime is 1103253553. The next prime is 1103253577. The reversal of 1103253563 is 3653523011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3653523011 = 31 ⋅117855581.

It is not a de Polignac number, because 1103253563 - 2⁶ = 1103253499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1103253553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29032970 + ... + 29033007.

It is an arithmetic number, because the mean of its divisors is an integer number (290329890).

Almost surely, 2^1103253563 is an apocalyptic number.

1103253563 is a deficient number, since it is larger than the sum of its proper divisors (58065997).

1103253563 is an equidigital number, since it uses as much as digits as its factorization.

1103253563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58065996.

The product of its (nonzero) digits is 8100, while the sum is 29.

The square root of 1103253563 is about 33215.2609955123. The cubic root of 1103253563 is about 1033.2968677269.

Adding to 1103253563 its reverse (3653523011), we get a palindrome (4756776574).

The spelling of 1103253563 in words is "one billion, one hundred three million, two hundred fifty-three thousand, five hundred sixty-three".