122120200203123 has 16 divisors (see below), whose sum is σ = 172406976611616. Its totient is φ = 76623555747840.

The previous prime is 122120200203103. The next prime is 122120200203139. The reversal of 122120200203123 is 321302002021221.

It is not a de Polignac number, because 122120200203123 - 2⁸ = 122120200202867 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122120200203123.

It is not an unprimeable number, because it can be changed into a prime (122120200203103) 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, 9326038 + ... + 18199323.

It is an arithmetic number, because the mean of its divisors is an integer number (10775436038226).

Almost surely, 2^{122120200203123} is an apocalyptic number.

122120200203123 is a deficient number, since it is larger than the sum of its proper divisors (50286776408493).

122120200203123 is a wasteful number, since it uses less digits than its factorization.

122120200203123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27612374.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 122120200203123 its reverse (321302002021221), we get a palindrome (443422202224344).

The spelling of 122120200203123 in words is "one hundred twenty-two trillion, one hundred twenty billion, two hundred million, two hundred three thousand, one hundred twenty-three".