2111123233423 has 4 divisors (see below), whose sum is σ = 2111170476240. Its totient is φ = 2111075990608.

The previous prime is 2111123233403. The next prime is 2111123233537. The reversal of 2111123233423 is 3243323211112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2111123233423 is a prime.

It is a super-3 number, since 3×2111123233423³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2111123233391 and 2111123233400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111123233403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23554315 + ... + 23643772.

It is an arithmetic number, because the mean of its divisors is an integer number (527792619060).

Almost surely, 2^{2111123233423} is an apocalyptic number.

2111123233423 is a deficient number, since it is larger than the sum of its proper divisors (47242817).

2111123233423 is an equidigital number, since it uses as much as digits as its factorization.

2111123233423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47242816.

The product of its digits is 5184, while the sum is 28.

Adding to 2111123233423 its reverse (3243323211112), we get a palindrome (5354446444535).

The spelling of 2111123233423 in words is "two trillion, one hundred eleven billion, one hundred twenty-three million, two hundred thirty-three thousand, four hundred twenty-three".