123255443225305 has 8 divisors (see below), whose sum is σ = 147908436165000. Its totient is φ = 98603085050496.

The previous prime is 123255443225149. The next prime is 123255443225351. The reversal of 123255443225305 is 503522344552321.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 17514593281936 + 105740849943369 = 4185044^2 + 10283037^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123255443225305 - 2⁴³ = 114459350203097 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158263930 + ... + 159040819.

It is an arithmetic number, because the mean of its divisors is an integer number (18488554520625).

Almost surely, 2^{123255443225305} is an apocalyptic number.

It is an amenable number.

123255443225305 is a deficient number, since it is larger than the sum of its proper divisors (24652992939695).

123255443225305 is an equidigital number, since it uses as much as digits as its factorization.

123255443225305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317382443.

The product of its (nonzero) digits is 4320000, while the sum is 46.

Adding to 123255443225305 its reverse (503522344552321), we get a palindrome (626777787777626).

The spelling of 123255443225305 in words is "one hundred twenty-three trillion, two hundred fifty-five billion, four hundred forty-three million, two hundred twenty-five thousand, three hundred five".