12001131127 has 2 divisors, whose sum is σ = 12001131128. Its totient is φ = 12001131126.

The previous prime is 12001131083. The next prime is 12001131167. The reversal of 12001131127 is 72113110021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12001131127 - 2¹⁵ = 12001098359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12001131167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000565563 + 6000565564.

It is an arithmetic number, because the mean of its divisors is an integer number (6000565564).

Almost surely, 2^12001131127 is an apocalyptic number.

12001131127 is a deficient number, since it is larger than the sum of its proper divisors (1).

12001131127 is an equidigital number, since it uses as much as digits as its factorization.

12001131127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84, while the sum is 19.

Adding to 12001131127 its reverse (72113110021), we get a palindrome (84114241148).

The spelling of 12001131127 in words is "twelve billion, one million, one hundred thirty-one thousand, one hundred twenty-seven".