211313331233 has 2 divisors, whose sum is σ = 211313331234. Its totient is φ = 211313331232.

The previous prime is 211313331217. The next prime is 211313331259. The reversal of 211313331233 is 332133313112.

It is an a-pointer prime, because the next prime (211313331259) can be obtained adding 211313331233 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127796955169 + 83516376064 = 357487^2 + 288992^2 .

It is a cyclic number.

It is not a de Polignac number, because 211313331233 - 2⁴ = 211313331217 is a prime.

It is not a weakly prime, because it can be changed into another prime (211313331283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105656665616 + 105656665617.

It is an arithmetic number, because the mean of its divisors is an integer number (105656665617).

Almost surely, 2^211313331233 is an apocalyptic number.

It is an amenable number.

211313331233 is a deficient number, since it is larger than the sum of its proper divisors (1).

211313331233 is an equidigital number, since it uses as much as digits as its factorization.

211313331233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2916, while the sum is 26.

Adding to 211313331233 its reverse (332133313112), we get a palindrome (543446644345).

The spelling of 211313331233 in words is "two hundred eleven billion, three hundred thirteen million, three hundred thirty-one thousand, two hundred thirty-three".