2123323012111 has 32 divisors (see below), whose sum is σ = 2480069652480. Its totient is φ = 1780245236736.

The previous prime is 2123323012099. The next prime is 2123323012171. The reversal of 2123323012111 is 1112103233212.

It is a cyclic number.

It is not a de Polignac number, because 2123323012111 - 2¹⁷ = 2123322881039 is a prime.

It is a super-2 number, since 2×2123323012111² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123323012171) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 244702705 + ... + 244711381.

It is an arithmetic number, because the mean of its divisors is an integer number (77502176640).

Almost surely, 2^{2123323012111} is an apocalyptic number.

2123323012111 is a deficient number, since it is larger than the sum of its proper divisors (356746640369).

2123323012111 is a wasteful number, since it uses less digits than its factorization.

2123323012111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11623.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 2123323012111 its reverse (1112103233212), we get a palindrome (3235426245323).

The spelling of 2123323012111 in words is "two trillion, one hundred twenty-three billion, three hundred twenty-three million, twelve thousand, one hundred eleven".