1311103001 has 16 divisors (see below), whose sum is σ = 1424908800. Its totient is φ = 1199190720.

The previous prime is 1311102997. The next prime is 1311103049. The reversal of 1311103001 is 1003011131.

It is a happy number.

It is not a de Polignac number, because 1311103001 - 2² = 1311102997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1311103081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1438736 + ... + 1439646.

It is an arithmetic number, because the mean of its divisors is an integer number (89056800).

Almost surely, 2^1311103001 is an apocalyptic number.

It is an amenable number.

1311103001 is a deficient number, since it is larger than the sum of its proper divisors (113805799).

1311103001 is a wasteful number, since it uses less digits than its factorization.

1311103001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1816.

The product of its (nonzero) digits is 9, while the sum is 11.

The square root of 1311103001 is about 36209.1563143910. The cubic root of 1311103001 is about 1094.4911909507.

Adding to 1311103001 its reverse (1003011131), we get a palindrome (2314114132).

The spelling of 1311103001 in words is "one billion, three hundred eleven million, one hundred three thousand, one".