1311016216 has 16 divisors (see below), whose sum is σ = 2481130440. Its totient is φ = 649381440.

The previous prime is 1311016211. The next prime is 1311016229. The reversal of 1311016216 is 6126101131.

It is a super-2 number, since 2×1311016216² = 3437527037229917312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311016211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 764925 + ... + 766636.

Almost surely, 2^1311016216 is an apocalyptic number.

It is an amenable number.

1311016216 is a deficient number, since it is larger than the sum of its proper divisors (1170114224).

1311016216 is a wasteful number, since it uses less digits than its factorization.

1311016216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1531674 (or 1531670 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 1311016216 is about 36207.9579098297. The cubic root of 1311016216 is about 1094.4670414334.

Adding to 1311016216 its reverse (6126101131), we get a palindrome (7437117347).

The spelling of 1311016216 in words is "one billion, three hundred eleven million, sixteen thousand, two hundred sixteen".