211312021233 has 8 divisors (see below), whose sum is σ = 289364209408. Its totient is φ = 137067256944.

The previous prime is 211312021229. The next prime is 211312021243. The reversal of 211312021233 is 332120213112.

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

It is not a de Polignac number, because 211312021233 - 2² = 211312021229 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211312021243) 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, 951855841 + ... + 951856062.

It is an arithmetic number, because the mean of its divisors is an integer number (36170526176).

Almost surely, 2^211312021233 is an apocalyptic number.

It is an amenable number.

211312021233 is a deficient number, since it is larger than the sum of its proper divisors (78052188175).

211312021233 is a wasteful number, since it uses less digits than its factorization.

211312021233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1903711943.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 211312021233 its reverse (332120213112), we get a palindrome (543432234345).

The spelling of 211312021233 in words is "two hundred eleven billion, three hundred twelve million, twenty-one thousand, two hundred thirty-three".