123020300123 has 16 divisors (see below), whose sum is σ = 146869363200. Its totient is φ = 100750041216.

The previous prime is 123020300089. The next prime is 123020300129. The reversal of 123020300123 is 321003020321.

It is a cyclic number.

It is not a de Polignac number, because 123020300123 - 2⁶ = 123020300059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123020300129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 275198 + ... + 567251.

It is an arithmetic number, because the mean of its divisors is an integer number (9179335200).

Almost surely, 2^123020300123 is an apocalyptic number.

123020300123 is a deficient number, since it is larger than the sum of its proper divisors (23849063077).

123020300123 is an equidigital number, since it uses as much as digits as its factorization.

123020300123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843386.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 123020300123 its reverse (321003020321), we get a palindrome (444023320444).

The spelling of 123020300123 in words is "one hundred twenty-three billion, twenty million, three hundred thousand, one hundred twenty-three".