12131707 has 4 divisors (see below), whose sum is σ = 13864816. Its totient is φ = 10398600.

The previous prime is 12131701. The next prime is 12131711. The reversal of 12131707 is 70713121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12131707 - 2¹¹ = 12129659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12131701) 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, 866544 + ... + 866557.

It is an arithmetic number, because the mean of its divisors is an integer number (3466204).

Almost surely, 2^12131707 is an apocalyptic number.

12131707 is a deficient number, since it is larger than the sum of its proper divisors (1733109).

12131707 is an equidigital number, since it uses as much as digits as its factorization.

12131707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1733108.

The product of its (nonzero) digits is 294, while the sum is 22.

The square root of 12131707 is about 3483.0600052253. The cubic root of 12131707 is about 229.7773964708. Note that the first 3 decimals are identical.

Adding to 12131707 its reverse (70713121), we get a palindrome (82844828).

The spelling of 12131707 in words is "twelve million, one hundred thirty-one thousand, seven hundred seven".