1113403 has 2 divisors, whose sum is σ = 1113404. Its totient is φ = 1113402.

The previous prime is 1113401. The next prime is 1113421. The reversal of 1113403 is 3043111.

It is a weak prime.

It is an emirp because it is prime and its reverse (3043111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1113403 - 2¹ = 1113401 is a prime.

It is a super-3 number, since 3×1113403³ = 4140744333210305481, which contains 333 as substring.

Together with 1113401, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1113401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556701 + 556702.

It is an arithmetic number, because the mean of its divisors is an integer number (556702).

2^1113403 is an apocalyptic number.

1113403 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113403 is an equidigital number, since it uses as much as digits as its factorization.

1113403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1113403 is about 1055.1791317118. The cubic root of 1113403 is about 103.6455822731.

Adding to 1113403 its reverse (3043111), we get a palindrome (4156514).

The spelling of 1113403 in words is "one million, one hundred thirteen thousand, four hundred three".