12311032127 has 2 divisors, whose sum is σ = 12311032128. Its totient is φ = 12311032126.

The previous prime is 12311032081. The next prime is 12311032177. The reversal of 12311032127 is 72123011321.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12311032127 is a prime.

It is a super-2 number, since 2×12311032127² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12311032177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6155516063 + 6155516064.

It is an arithmetic number, because the mean of its divisors is an integer number (6155516064).

Almost surely, 2^12311032127 is an apocalyptic number.

12311032127 is a deficient number, since it is larger than the sum of its proper divisors (1).

12311032127 is an equidigital number, since it uses as much as digits as its factorization.

12311032127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 23.

Adding to 12311032127 its reverse (72123011321), we get a palindrome (84434043448).

The spelling of 12311032127 in words is "twelve billion, three hundred eleven million, thirty-two thousand, one hundred twenty-seven".