33313323213 has 12 divisors (see below), whose sum is σ = 48129354780. Its totient is φ = 22204215936.

The previous prime is 33313323203. The next prime is 33313323227. The reversal of 33313323213 is 31232331333.

33313323213 is a `hidden beast` number, since 3 + 3 + 3 + 1 + 332 + 321 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8375544324 + 24937778889 = 91518^2 + 157917^2 .

It is not a de Polignac number, because 33313323213 - 2²¹ = 33311226061 is a prime.

It is a super-2 number, since 2×33313323213² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33313323203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 343356 + ... + 429557.

It is an arithmetic number, because the mean of its divisors is an integer number (4010779565).

Almost surely, 2^33313323213 is an apocalyptic number.

It is an amenable number.

33313323213 is a deficient number, since it is larger than the sum of its proper divisors (14816031567).

33313323213 is a wasteful number, since it uses less digits than its factorization.

33313323213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777708 (or 777705 counting only the distinct ones).

The product of its digits is 8748, while the sum is 27.

Adding to 33313323213 its reverse (31232331333), we get a palindrome (64545654546).

The spelling of 33313323213 in words is "thirty-three billion, three hundred thirteen million, three hundred twenty-three thousand, two hundred thirteen".