123032111121 has 12 divisors (see below), whose sum is σ = 180725135760. Its totient is φ = 80631213720.

The previous prime is 123032111101. The next prime is 123032111123. The reversal of 123032111121 is 121111230321.

123032111121 is a `hidden beast` number, since 1 + 230 + 321 + 1 + 112 + 1 = 666.

It is not a de Polignac number, because 123032111121 - 2¹¹ = 123032109073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123032111094 and 123032111103.

It is not an unprimeable number, because it can be changed into a prime (123032111123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 115848915 + ... + 115849976.

It is an arithmetic number, because the mean of its divisors is an integer number (15060427980).

Almost surely, 2^123032111121 is an apocalyptic number.

It is an amenable number.

123032111121 is a deficient number, since it is larger than the sum of its proper divisors (57693024639).

123032111121 is a wasteful number, since it uses less digits than its factorization.

123032111121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231698956 (or 231698953 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 123032111121 its reverse (121111230321), we get a palindrome (244143341442).

The spelling of 123032111121 in words is "one hundred twenty-three billion, thirty-two million, one hundred eleven thousand, one hundred twenty-one".