211223133023 has 8 divisors (see below), whose sum is σ = 241448018592. Its totient is φ = 181010785536.

The previous prime is 211223133013. The next prime is 211223133029. The reversal of 211223133023 is 320331322112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 211223133023 - 2²⁴ = 211206355807 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211223133023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211223133029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3098390 + ... + 3165827.

It is an arithmetic number, because the mean of its divisors is an integer number (30181002324).

Almost surely, 2^211223133023 is an apocalyptic number.

211223133023 is a deficient number, since it is larger than the sum of its proper divisors (30224885569).

211223133023 is an equidigital number, since it uses as much as digits as its factorization.

211223133023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6269041.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 211223133023 its reverse (320331322112), we get a palindrome (531554455135).

The spelling of 211223133023 in words is "two hundred eleven billion, two hundred twenty-three million, one hundred thirty-three thousand, twenty-three".