1103406263 has 4 divisors (see below), whose sum is σ = 1126883040. Its totient is φ = 1079929488.

The previous prime is 1103406257. The next prime is 1103406277. The reversal of 1103406263 is 3626043011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1103406263 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 (1103406203) 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, 11738318 + ... + 11738411.

It is an arithmetic number, because the mean of its divisors is an integer number (281720760).

Almost surely, 2^1103406263 is an apocalyptic number.

1103406263 is a deficient number, since it is larger than the sum of its proper divisors (23476777).

1103406263 is an equidigital number, since it uses as much as digits as its factorization.

1103406263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23476776.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 1103406263 is about 33217.5595581614. The cubic root of 1103406263 is about 1033.3445379870.

Adding to 1103406263 its reverse (3626043011), we get a palindrome (4729449274).

The spelling of 1103406263 in words is "one billion, one hundred three million, four hundred six thousand, two hundred sixty-three".