33730270213 has 2 divisors, whose sum is σ = 33730270214. Its totient is φ = 33730270212.

The previous prime is 33730270193. The next prime is 33730270219. The reversal of 33730270213 is 31207203733.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28446870244 + 5283399969 = 168662^2 + 72687^2 .

It is a cyclic number.

It is not a de Polignac number, because 33730270213 - 2¹⁷ = 33730139141 is a prime.

It is a super-2 number, since 2×33730270213² (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 (33730270219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16865135106 + 16865135107.

It is an arithmetic number, because the mean of its divisors is an integer number (16865135107).

Almost surely, 2^33730270213 is an apocalyptic number.

It is an amenable number.

33730270213 is a deficient number, since it is larger than the sum of its proper divisors (1).

33730270213 is an equidigital number, since it uses as much as digits as its factorization.

33730270213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876, while the sum is 31.

Adding to 33730270213 its reverse (31207203733), we get a palindrome (64937473946).

The spelling of 33730270213 in words is "thirty-three billion, seven hundred thirty million, two hundred seventy thousand, two hundred thirteen".