123144134220271 has 2 divisors, whose sum is σ = 123144134220272. Its totient is φ = 123144134220270.

The previous prime is 123144134220269. The next prime is 123144134220361. The reversal of 123144134220271 is 172022431441321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123144134220271 - 2¹ = 123144134220269 is a prime.

Together with 123144134220269, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 123144134220271.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123144134220221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61572067110135 + 61572067110136.

It is an arithmetic number, because the mean of its divisors is an integer number (61572067110136).

Almost surely, 2^{123144134220271} is an apocalyptic number.

123144134220271 is a deficient number, since it is larger than the sum of its proper divisors (1).

123144134220271 is an equidigital number, since it uses as much as digits as its factorization.

123144134220271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 37.

Adding to 123144134220271 its reverse (172022431441321), we get a palindrome (295166565661592).

The spelling of 123144134220271 in words is "one hundred twenty-three trillion, one hundred forty-four billion, one hundred thirty-four million, two hundred twenty thousand, two hundred seventy-one".