123000343200145 has 4 divisors (see below), whose sum is σ = 147600411840180. Its totient is φ = 98400274560112.

The previous prime is 123000343200127. The next prime is 123000343200149. The reversal of 123000343200145 is 541002343000321.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39002073386896 + 83998269813249 = 6245164^2 + 9165057^2 .

It is a cyclic number.

It is not a de Polignac number, because 123000343200145 - 2⁷ = 123000343200017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123000343200149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12300034320010 + ... + 12300034320019.

It is an arithmetic number, because the mean of its divisors is an integer number (36900102960045).

Almost surely, 2^{123000343200145} is an apocalyptic number.

It is an amenable number.

123000343200145 is a deficient number, since it is larger than the sum of its proper divisors (24600068640035).

123000343200145 is an equidigital number, since it uses as much as digits as its factorization.

123000343200145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24600068640034.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 123000343200145 its reverse (541002343000321), we get a palindrome (664002686200466).

The spelling of 123000343200145 in words is "one hundred twenty-three trillion, three hundred forty-three million, two hundred thousand, one hundred forty-five".