1113323403 has 4 divisors (see below), whose sum is σ = 1484431208. Its totient is φ = 742215600.

The previous prime is 1113323401. The next prime is 1113323413. The reversal of 1113323403 is 3043233111.

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

It is not a de Polignac number, because 1113323403 - 2¹ = 1113323401 is a prime.

It is a super-3 number, since 3×1113323403³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1113323403.

It is not an unprimeable number, because it can be changed into a prime (1113323401) 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, 185553898 + ... + 185553903.

It is an arithmetic number, because the mean of its divisors is an integer number (371107802).

Almost surely, 2^1113323403 is an apocalyptic number.

1113323403 is a deficient number, since it is larger than the sum of its proper divisors (371107805).

1113323403 is an equidigital number, since it uses as much as digits as its factorization.

1113323403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371107804.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 1113323403 is about 33366.5012100460. The cubic root of 1113323403 is about 1036.4311234564.

Adding to 1113323403 its reverse (3043233111), we get a palindrome (4156556514).

The spelling of 1113323403 in words is "one billion, one hundred thirteen million, three hundred twenty-three thousand, four hundred three".