12144433177 has 2 divisors, whose sum is σ = 12144433178. Its totient is φ = 12144433176.

The previous prime is 12144433121. The next prime is 12144433183. The reversal of 12144433177 is 77133444121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12114084096 + 30349081 = 110064^2 + 5509^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12144433177 is a prime.

It is not a weakly prime, because it can be changed into another prime (12144437177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6072216588 + 6072216589.

It is an arithmetic number, because the mean of its divisors is an integer number (6072216589).

Almost surely, 2^12144433177 is an apocalyptic number.

It is an amenable number.

12144433177 is a deficient number, since it is larger than the sum of its proper divisors (1).

12144433177 is an equidigital number, since it uses as much as digits as its factorization.

12144433177 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56448, while the sum is 37.

Adding to 12144433177 its reverse (77133444121), we get a palindrome (89277877298).

The spelling of 12144433177 in words is "twelve billion, one hundred forty-four million, four hundred thirty-three thousand, one hundred seventy-seven".