211320031233 has 16 divisors (see below), whose sum is σ = 303486951680. Its totient is φ = 130361437584.

The previous prime is 211320031211. The next prime is 211320031243. The reversal of 211320031233 is 332130023112.

It is not a de Polignac number, because 211320031233 - 2²⁰ = 211318982657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211320031243) 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, 43106491 + ... + 43111392.

It is an arithmetic number, because the mean of its divisors is an integer number (18967934480).

Almost surely, 2^211320031233 is an apocalyptic number.

It is an amenable number.

211320031233 is a deficient number, since it is larger than the sum of its proper divisors (92166920447).

211320031233 is a wasteful number, since it uses less digits than its factorization.

211320031233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86217948.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 211320031233 its reverse (332130023112), we get a palindrome (543450054345).

The spelling of 211320031233 in words is "two hundred eleven billion, three hundred twenty million, thirty-one thousand, two hundred thirty-three".