12031322207 has 4 divisors (see below), whose sum is σ = 12032037360. Its totient is φ = 12030607056.

The previous prime is 12031322167. The next prime is 12031322231. The reversal of 12031322207 is 70222313021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12031322207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12031322507) 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, 331718 + ... + 366195.

It is an arithmetic number, because the mean of its divisors is an integer number (3008009340).

Almost surely, 2^12031322207 is an apocalyptic number.

12031322207 is a deficient number, since it is larger than the sum of its proper divisors (715153).

12031322207 is an equidigital number, since it uses as much as digits as its factorization.

12031322207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715152.

The product of its (nonzero) digits is 1008, while the sum is 23.

Adding to 12031322207 its reverse (70222313021), we get a palindrome (82253635228).

The spelling of 12031322207 in words is "twelve billion, thirty-one million, three hundred twenty-two thousand, two hundred seven".