211113202232123 has 4 divisors (see below), whose sum is σ = 211235728758648. Its totient is φ = 210990675705600.

The previous prime is 211113202232081. The next prime is 211113202232131. The reversal of 211113202232123 is 321232202311112.

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

It is a cyclic number.

It is not a de Polignac number, because 211113202232123 - 2¹⁸ = 211113201969979 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211113202232092 and 211113202232101.

It is not an unprimeable number, because it can be changed into a prime (211113202232923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61263260678 + ... + 61263264123.

It is an arithmetic number, because the mean of its divisors is an integer number (52808932189662).

Almost surely, 2^{211113202232123} is an apocalyptic number.

211113202232123 is a deficient number, since it is larger than the sum of its proper divisors (122526526525).

211113202232123 is a wasteful number, since it uses less digits than its factorization.

211113202232123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122526526524.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 211113202232123 its reverse (321232202311112), we get a palindrome (532345404543235).

The spelling of 211113202232123 in words is "two hundred eleven trillion, one hundred thirteen billion, two hundred two million, two hundred thirty-two thousand, one hundred twenty-three".