12109713 has 24 divisors (see below), whose sum is σ = 20492640. Its totient is φ = 6289920.

The previous prime is 12109697. The next prime is 12109817. The reversal of 12109713 is 31790121.

12109713 is digitally balanced in base 2, base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12109713 - 2⁴ = 12109697 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12109613) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2128 + ... + 5361.

It is an arithmetic number, because the mean of its divisors is an integer number (853860).

Almost surely, 2^12109713 is an apocalyptic number.

It is an amenable number.

12109713 is a deficient number, since it is larger than the sum of its proper divisors (8382927).

12109713 is a wasteful number, since it uses less digits than its factorization.

12109713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7517 (or 7510 counting only the distinct ones).

The product of its (nonzero) digits is 378, while the sum is 24.

The square root of 12109713 is about 3479.9012917035. The cubic root of 12109713 is about 229.6384552880.

Adding to 12109713 its reverse (31790121), we get a palindrome (43899834).

The spelling of 12109713 in words is "twelve million, one hundred nine thousand, seven hundred thirteen".