213111123441 has 16 divisors (see below), whose sum is σ = 301890878400. Its totient is φ = 133467542208.

The previous prime is 213111123419. The next prime is 213111123473. The reversal of 213111123441 is 144321111312.

It is not a de Polignac number, because 213111123441 - 2⁵ = 213111123409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213111124441) 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, 33098851 + ... + 33105288.

It is an arithmetic number, because the mean of its divisors is an integer number (18868179900).

Almost surely, 2^213111123441 is an apocalyptic number.

It is an amenable number.

213111123441 is a deficient number, since it is larger than the sum of its proper divisors (88779754959).

213111123441 is a wasteful number, since it uses less digits than its factorization.

213111123441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66204208.

The product of its digits is 576, while the sum is 24.

Adding to 213111123441 its reverse (144321111312), we get a palindrome (357432234753).

The spelling of 213111123441 in words is "two hundred thirteen billion, one hundred eleven million, one hundred twenty-three thousand, four hundred forty-one".