213212323133 has 2 divisors, whose sum is σ = 213212323134. Its totient is φ = 213212323132.

The previous prime is 213212323111. The next prime is 213212323141. The reversal of 213212323133 is 331323212312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 211616560324 + 1595762809 = 460018^2 + 39947^2 .

It is a cyclic number.

It is not a de Polignac number, because 213212323133 - 2¹⁶ = 213212257597 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213212323153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106606161566 + 106606161567.

It is an arithmetic number, because the mean of its divisors is an integer number (106606161567).

Almost surely, 2^213212323133 is an apocalyptic number.

It is an amenable number.

213212323133 is a deficient number, since it is larger than the sum of its proper divisors (1).

213212323133 is an equidigital number, since it uses as much as digits as its factorization.

213212323133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 26.

Adding to 213212323133 its reverse (331323212312), we get a palindrome (544535535445).

The spelling of 213212323133 in words is "two hundred thirteen billion, two hundred twelve million, three hundred twenty-three thousand, one hundred thirty-three".