1113132403 has 4 divisors (see below), whose sum is σ = 1161529488. Its totient is φ = 1064735320.

The previous prime is 1113132323. The next prime is 1113132467. The reversal of 1113132403 is 3042313111.

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

It is not a de Polignac number, because 1113132403 - 2²¹ = 1111035251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1113132473) 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, 24198508 + ... + 24198553.

It is an arithmetic number, because the mean of its divisors is an integer number (290382372).

Almost surely, 2^1113132403 is an apocalyptic number.

1113132403 is a deficient number, since it is larger than the sum of its proper divisors (48397085).

1113132403 is an equidigital number, since it uses as much as digits as its factorization.

1113132403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48397084.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1113132403 is about 33363.6389352241. The cubic root of 1113132403 is about 1036.3718505726.

Adding to 1113132403 its reverse (3042313111), we get a palindrome (4155445514).

It can be divided in two parts, 11131 and 32403, that added together give a palindrome (43534).

The spelling of 1113132403 in words is "one billion, one hundred thirteen million, one hundred thirty-two thousand, four hundred three".