1131113603 has 8 divisors (see below), whose sum is σ = 1152443760. Its totient is φ = 1109855520.

The previous prime is 1131113597. The next prime is 1131113623. The reversal of 1131113603 is 3063111311.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1131113603 - 2⁶ = 1131113539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131113623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14201 + ... + 49637.

It is an arithmetic number, because the mean of its divisors is an integer number (144055470).

Almost surely, 2^1131113603 is an apocalyptic number.

1131113603 is a deficient number, since it is larger than the sum of its proper divisors (21330157).

1131113603 is an equidigital number, since it uses as much as digits as its factorization.

1131113603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36037.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 1131113603 is about 33632.0323947275. The cubic root of 1131113603 is about 1041.9224804578.

Adding to 1131113603 its reverse (3063111311), we get a palindrome (4194224914).

The spelling of 1131113603 in words is "one billion, one hundred thirty-one million, one hundred thirteen thousand, six hundred three".