1311016 has 32 divisors (see below), whose sum is σ = 2882880. Its totient is φ = 547200.

The previous prime is 1311001. The next prime is 1311029. The reversal of 1311016 is 6101131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1310987 and 1311005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2011 + ... + 2581.

It is an arithmetic number, because the mean of its divisors is an integer number (90090).

2^1311016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1311016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1441440).

1311016 is an abundant number, since it is smaller than the sum of its proper divisors (1571864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1311016 is a wasteful number, since it uses less digits than its factorization.

1311016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625 (or 621 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1311016 is about 1144.9960698623. The cubic root of 1311016 is about 109.4466981326.

Adding to 1311016 its reverse (6101131), we get a palindrome (7412147).

The spelling of 1311016 in words is "one million, three hundred eleven thousand, sixteen".