33481211213 has 2 divisors, whose sum is σ = 33481211214. Its totient is φ = 33481211212.

The previous prime is 33481211207. The next prime is 33481211273. The reversal of 33481211213 is 31211218433.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29938342729 + 3542868484 = 173027^2 + 59522^2 .

It is a cyclic number.

It is not a de Polignac number, because 33481211213 - 2²⁶ = 33414102349 is a prime.

It is a super-2 number, since 2×33481211213² (a number of 22 digits) contains 22 as substring.

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 (33481211273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16740605606 + 16740605607.

It is an arithmetic number, because the mean of its divisors is an integer number (16740605607).

Almost surely, 2^33481211213 is an apocalyptic number.

It is an amenable number.

33481211213 is a deficient number, since it is larger than the sum of its proper divisors (1).

33481211213 is an equidigital number, since it uses as much as digits as its factorization.

33481211213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 29.

Adding to 33481211213 its reverse (31211218433), we get a palindrome (64692429646).

The spelling of 33481211213 in words is "thirty-three billion, four hundred eighty-one million, two hundred eleven thousand, two hundred thirteen".