12501312 has 28 divisors (see below), whose sum is σ = 33076896. Its totient is φ = 4167040.

The previous prime is 12501311. The next prime is 12501317. The reversal of 12501312 is 21310521.

It is a junction number, because it is equal to n+sod(n) for n = 12501291 and 12501300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12501311) 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, 32364 + ... + 32747.

Almost surely, 2^12501312 is an apocalyptic number.

12501312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12501312 is an abundant number, since it is smaller than the sum of its proper divisors (20575584).

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

12501312 is an equidigital number, since it uses as much as digits as its factorization.

12501312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65126 (or 65116 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 12501312 is about 3535.7194458837. The cubic root of 12501312 is about 232.0875610826.

Adding to 12501312 its reverse (21310521), we get a palindrome (33811833).

The spelling of 12501312 in words is "twelve million, five hundred one thousand, three hundred twelve".