33683350213 has 2 divisors, whose sum is σ = 33683350214. Its totient is φ = 33683350212.

The previous prime is 33683350199. The next prime is 33683350223. The reversal of 33683350213 is 31205338633.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19221604164 + 14461746049 = 138642^2 + 120257^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33683350213 is a prime.

It is a super-2 number, since 2×33683350213² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33683350223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16841675106 + 16841675107.

It is an arithmetic number, because the mean of its divisors is an integer number (16841675107).

Almost surely, 2^33683350213 is an apocalyptic number.

It is an amenable number.

33683350213 is a deficient number, since it is larger than the sum of its proper divisors (1).

33683350213 is an equidigital number, since it uses as much as digits as its factorization.

33683350213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 37.

Adding to 33683350213 its reverse (31205338633), we get a palindrome (64888688846).

The spelling of 33683350213 in words is "thirty-three billion, six hundred eighty-three million, three hundred fifty thousand, two hundred thirteen".