12681012 has 24 divisors (see below), whose sum is σ = 29657376. Its totient is φ = 4217248.

The previous prime is 12681007. The next prime is 12681017. The reversal of 12681012 is 21018621.

It is an interprime number because it is at equal distance from previous prime (12681007) and next prime (12681017).

It is a self number, because there is not a number n which added to its sum of digits gives 12681012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12681017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5818 + ... + 7694.

It is an arithmetic number, because the mean of its divisors is an integer number (1235724).

Almost surely, 2^12681012 is an apocalyptic number.

12681012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12681012 is an abundant number, since it is smaller than the sum of its proper divisors (16976364).

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

12681012 is a wasteful number, since it uses less digits than its factorization.

12681012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2447 (or 2445 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 12681012 is about 3561.0408590748. The cubic root of 12681012 is about 233.1943217335.

Adding to 12681012 its reverse (21018621), we get a palindrome (33699633).

The spelling of 12681012 in words is "twelve million, six hundred eighty-one thousand, twelve".