123123223020211 has 16 divisors (see below), whose sum is σ = 123650447745600. Its totient is φ = 122597360865280.

The previous prime is 123123223020199. The next prime is 123123223020229. The reversal of 123123223020211 is 112020322321321.

It is a cyclic number.

It is not a de Polignac number, because 123123223020211 - 2¹¹ = 123123223018163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123123223020241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 466957065 + ... + 467220661.

It is an arithmetic number, because the mean of its divisors is an integer number (7728152984100).

Almost surely, 2^{123123223020211} is an apocalyptic number.

123123223020211 is a deficient number, since it is larger than the sum of its proper divisors (527224725389).

123123223020211 is a wasteful number, since it uses less digits than its factorization.

123123223020211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266174.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 123123223020211 its reverse (112020322321321), we get a palindrome (235143545341532).

The spelling of 123123223020211 in words is "one hundred twenty-three trillion, one hundred twenty-three billion, two hundred twenty-three million, twenty thousand, two hundred eleven".