123255441143321 has 2 divisors, whose sum is σ = 123255441143322. Its totient is φ = 123255441143320.

The previous prime is 123255441143297. The next prime is 123255441143347. The reversal of 123255441143321 is 123341144552321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88664445792400 + 34590995350921 = 9416180^2 + 5881411^2 .

It is an emirp because it is prime and its reverse (123341144552321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123255441143321 - 2²² = 123255436949017 is a prime.

It is not a weakly prime, because it can be changed into another prime (123255441143381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61627720571660 + 61627720571661.

It is an arithmetic number, because the mean of its divisors is an integer number (61627720571661).

Almost surely, 2^{123255441143321} is an apocalyptic number.

It is an amenable number.

123255441143321 is a deficient number, since it is larger than the sum of its proper divisors (1).

123255441143321 is an equidigital number, since it uses as much as digits as its factorization.

123255441143321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 345600, while the sum is 41.

Adding to 123255441143321 its reverse (123341144552321), we get a palindrome (246596585695642).

The spelling of 123255441143321 in words is "one hundred twenty-three trillion, two hundred fifty-five billion, four hundred forty-one million, one hundred forty-three thousand, three hundred twenty-one".