1311563030611 has 8 divisors (see below), whose sum is σ = 1330096053600. Its totient is φ = 1293031682880.

The previous prime is 1311563030587. The next prime is 1311563030621. The reversal of 1311563030611 is 1160303651131.

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 a de Polignac number, because none of the positive numbers 2^k-1311563030611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1311563030621) 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, 1202055 + ... + 2016943.

It is an arithmetic number, because the mean of its divisors is an integer number (166262006700).

Almost surely, 2^{1311563030611} is an apocalyptic number.

1311563030611 is a deficient number, since it is larger than the sum of its proper divisors (18533022989).

1311563030611 is an equidigital number, since it uses as much as digits as its factorization.

1311563030611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837629.

The product of its (nonzero) digits is 4860, while the sum is 31.

Adding to 1311563030611 its reverse (1160303651131), we get a palindrome (2471866681742).

The spelling of 1311563030611 in words is "one trillion, three hundred eleven billion, five hundred sixty-three million, thirty thousand, six hundred eleven".