123054204543173 has 2 divisors, whose sum is σ = 123054204543174. Its totient is φ = 123054204543172.

The previous prime is 123054204543119. The next prime is 123054204543181. The reversal of 123054204543173 is 371345402450321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122640186935809 + 414017607364 = 11074303^2 + 643442^2 .

It is a cyclic number.

It is not a de Polignac number, because 123054204543173 - 2¹⁰ = 123054204542149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123054204573173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61527102271586 + 61527102271587.

It is an arithmetic number, because the mean of its divisors is an integer number (61527102271587).

Almost surely, 2^{123054204543173} is an apocalyptic number.

It is an amenable number.

123054204543173 is a deficient number, since it is larger than the sum of its proper divisors (1).

123054204543173 is an equidigital number, since it uses as much as digits as its factorization.

123054204543173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1209600, while the sum is 44.

Adding to 123054204543173 its reverse (371345402450321), we get a palindrome (494399606993494).

The spelling of 123054204543173 in words is "one hundred twenty-three trillion, fifty-four billion, two hundred four million, five hundred forty-three thousand, one hundred seventy-three".