12311016 has 16 divisors (see below), whose sum is σ = 30777600. Its totient is φ = 4103664.

The previous prime is 12310997. The next prime is 12311017. The reversal of 12311016 is 61011321.

It is a super-2 number, since 2×12311016² = 303122229904512, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12310986 and 12311004.

It is not an unprimeable number, because it can be changed into a prime (12311017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256456 + ... + 256503.

It is an arithmetic number, because the mean of its divisors is an integer number (1923600).

Almost surely, 2^12311016 is an apocalyptic number.

It is an amenable number.

12311016 is an abundant number, since it is smaller than the sum of its proper divisors (18466584).

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

12311016 is a wasteful number, since it uses less digits than its factorization.

12311016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512968 (or 512964 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 12311016 is about 3508.7057442881. The cubic root of 12311016 is about 230.9039161125.

Adding to 12311016 its reverse (61011321), we get a palindrome (73322337).

The spelling of 12311016 in words is "twelve million, three hundred eleven thousand, sixteen".