2123012111133 has 16 divisors (see below), whose sum is σ = 2965359571200. Its totient is φ = 1349238596160.

The previous prime is 2123012111123. The next prime is 2123012111141. The reversal of 2123012111133 is 3311112103212.

It is not a de Polignac number, because 2123012111133 - 2⁴ = 2123012111117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123012111113) 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, 154438938 + ... + 154452683.

It is an arithmetic number, because the mean of its divisors is an integer number (185334973200).

Almost surely, 2^{2123012111133} is an apocalyptic number.

It is an amenable number.

2123012111133 is a deficient number, since it is larger than the sum of its proper divisors (842347460067).

2123012111133 is a wasteful number, since it uses less digits than its factorization.

2123012111133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308891732.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 2123012111133 its reverse (3311112103212), we get a palindrome (5434124214345).

The spelling of 2123012111133 in words is "two trillion, one hundred twenty-three billion, twelve million, one hundred eleven thousand, one hundred thirty-three".