1113413203 has 4 divisors (see below), whose sum is σ = 1272472240. Its totient is φ = 954354168.

The previous prime is 1113413087. The next prime is 1113413237. The reversal of 1113413203 is 3023143111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3023143111 = 45817 ⋅65983.

It is a cyclic number.

It is not a de Polignac number, because 1113413203 - 2²¹ = 1111316051 is a prime.

It is a super-2 number, since 2×1113413203² = 2479377921229438418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1113413263) 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, 79529508 + ... + 79529521.

It is an arithmetic number, because the mean of its divisors is an integer number (318118060).

Almost surely, 2^1113413203 is an apocalyptic number.

1113413203 is a deficient number, since it is larger than the sum of its proper divisors (159059037).

1113413203 is an equidigital number, since it uses as much as digits as its factorization.

1113413203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159059036.

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

The square root of 1113413203 is about 33367.8468439305. The cubic root of 1113413203 is about 1036.4589886788.

Adding to 1113413203 its reverse (3023143111), we get a palindrome (4136556314).

The spelling of 1113413203 in words is "one billion, one hundred thirteen million, four hundred thirteen thousand, two hundred three".