123320220021011 has 16 divisors (see below), whose sum is σ = 137109864272640. Its totient is φ = 110146396786560.

The previous prime is 123320220020983. The next prime is 123320220021049. The reversal of 123320220021011 is 110120022023321.

It is not a de Polignac number, because 123320220021011 - 2¹⁴ = 123320220004627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123320220024011) 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, 18795380 + ... + 24492993.

It is an arithmetic number, because the mean of its divisors is an integer number (8569366517040).

Almost surely, 2^{123320220021011} is an apocalyptic number.

123320220021011 is a deficient number, since it is larger than the sum of its proper divisors (13789644251629).

123320220021011 is a wasteful number, since it uses less digits than its factorization.

123320220021011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43295486.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 123320220021011 its reverse (110120022023321), we get a palindrome (233440242044332).

The spelling of 123320220021011 in words is "one hundred twenty-three trillion, three hundred twenty billion, two hundred twenty million, twenty-one thousand, eleven".