1311034563 has 12 divisors (see below), whose sum is σ = 1896950328. Its totient is φ = 872530560.

The previous prime is 1311034537. The next prime is 1311034567. The reversal of 1311034563 is 3654301131.

1311034563 is a `hidden beast` number, since 1 + 311 + 0 + 345 + 6 + 3 = 666.

It is not a de Polignac number, because 1311034563 - 2⁶ = 1311034499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1311034567) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 118798 + ... + 129363.

It is an arithmetic number, because the mean of its divisors is an integer number (158079194).

Almost surely, 2^1311034563 is an apocalyptic number.

1311034563 is a deficient number, since it is larger than the sum of its proper divisors (585915765).

1311034563 is a wasteful number, since it uses less digits than its factorization.

1311034563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248754 (or 248751 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 1311034563 is about 36208.2112648499. The cubic root of 1311034563 is about 1094.4721469114.

Adding to 1311034563 its reverse (3654301131), we get a palindrome (4965335694).

The spelling of 1311034563 in words is "one billion, three hundred eleven million, thirty-four thousand, five hundred sixty-three".