1311130003 has 4 divisors (see below), whose sum is σ = 1311604920. Its totient is φ = 1310655088.

The previous prime is 1311129997. The next prime is 1311130013. The reversal of 1311130003 is 3000311131.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1311130003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1311130013) 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 in 3 ways as a sum of consecutive naturals, for example, 233293 + ... + 238846.

It is an arithmetic number, because the mean of its divisors is an integer number (327901230).

Almost surely, 2^1311130003 is an apocalyptic number.

1311130003 is a deficient number, since it is larger than the sum of its proper divisors (474917).

1311130003 is an equidigital number, since it uses as much as digits as its factorization.

1311130003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474916.

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 1311130003 is about 36209.5291739619. The cubic root of 1311130003 is about 1094.4987045349.

Adding to 1311130003 its reverse (3000311131), we get a palindrome (4311441134).

The spelling of 1311130003 in words is "one billion, three hundred eleven million, one hundred thirty thousand, three".