13012312 has 32 divisors (see below), whose sum is σ = 25574400. Its totient is φ = 6199200.

The previous prime is 13012309. The next prime is 13012333. The reversal of 13012312 is 21321031.

It is a junction number, because it is equal to n+sod(n) for n = 13012292 and 13012301.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 17239 + ... + 17977.

It is an arithmetic number, because the mean of its divisors is an integer number (799200).

Almost surely, 2^13012312 is an apocalyptic number.

It is an amenable number.

13012312 is a deficient number, since it is larger than the sum of its proper divisors (12562088).

13012312 is a wasteful number, since it uses less digits than its factorization.

13012312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847 (or 843 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 13012312 is about 3607.2582386073. The cubic root of 13012312 is about 235.2076751780.

Adding to 13012312 its reverse (21321031), we get a palindrome (34333343).

The spelling of 13012312 in words is "thirteen million, twelve thousand, three hundred twelve".