123144444277 has 2 divisors, whose sum is σ = 123144444278. Its totient is φ = 123144444276.

The previous prime is 123144444221. The next prime is 123144444307. The reversal of 123144444277 is 772444441321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122954721201 + 189723076 = 350649^2 + 13774^2 .

It is a cyclic number.

It is not a de Polignac number, because 123144444277 - 2⁷ = 123144444149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123144444217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61572222138 + 61572222139.

It is an arithmetic number, because the mean of its divisors is an integer number (61572222139).

Almost surely, 2^123144444277 is an apocalyptic number.

It is an amenable number.

123144444277 is a deficient number, since it is larger than the sum of its proper divisors (1).

123144444277 is an equidigital number, since it uses as much as digits as its factorization.

123144444277 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 602112, while the sum is 43.

Adding to 123144444277 its reverse (772444441321), we get a palindrome (895588885598).

It can be divided in two parts, 1231444 and 44277, that added together give a palindrome (1275721).

The spelling of 123144444277 in words is "one hundred twenty-three billion, one hundred forty-four million, four hundred forty-four thousand, two hundred seventy-seven".