12311127 has 6 divisors (see below), whose sum is σ = 17782752. Its totient is φ = 8207412.

The previous prime is 12311119. The next prime is 12311137. The reversal of 12311127 is 72111321.

It is a happy number.

It is not a de Polignac number, because 12311127 - 2³ = 12311119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12311137) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 683943 + ... + 683960.

It is an arithmetic number, because the mean of its divisors is an integer number (2963792).

Almost surely, 2^12311127 is an apocalyptic number.

12311127 is a deficient number, since it is larger than the sum of its proper divisors (5471625).

12311127 is a wasteful number, since it uses less digits than its factorization.

12311127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1367909 (or 1367906 counting only the distinct ones).

The product of its digits is 84, while the sum is 18.

The square root of 12311127 is about 3508.7215620508. The cubic root of 12311127 is about 230.9046100779.

Adding to 12311127 its reverse (72111321), we get a palindrome (84422448).

The spelling of 12311127 in words is "twelve million, three hundred eleven thousand, one hundred twenty-seven".