12177127031 has 2 divisors, whose sum is σ = 12177127032. Its totient is φ = 12177127030.

The previous prime is 12177127009. The next prime is 12177127049. The reversal of 12177127031 is 13072177121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12177127031 is a prime.

It is a super-2 number, since 2×12177127031² (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 (12177127331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6088563515 + 6088563516.

It is an arithmetic number, because the mean of its divisors is an integer number (6088563516).

Almost surely, 2^12177127031 is an apocalyptic number.

12177127031 is a deficient number, since it is larger than the sum of its proper divisors (1).

12177127031 is an equidigital number, since it uses as much as digits as its factorization.

12177127031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4116, while the sum is 32.

The spelling of 12177127031 in words is "twelve billion, one hundred seventy-seven million, one hundred twenty-seven thousand, thirty-one".