33300031213 has 8 divisors (see below), whose sum is σ = 33583429880. Its totient is φ = 33017725440.

The previous prime is 33300031181. The next prime is 33300031229. The reversal of 33300031213 is 31213000333.

It can be written as a sum of positive squares in 4 ways, for example, as 1016206884 + 32283824329 = 31878^2 + 179677^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 33300031213 - 2⁵ = 33300031181 is a prime.

It is a super-2 number, since 2×33300031213² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33300031013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211968 + ... + 333961.

It is an arithmetic number, because the mean of its divisors is an integer number (4197928735).

Almost surely, 2^33300031213 is an apocalyptic number.

It is an amenable number.

33300031213 is a deficient number, since it is larger than the sum of its proper divisors (283398667).

33300031213 is a wasteful number, since it uses less digits than its factorization.

33300031213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546447.

The product of its (nonzero) digits is 486, while the sum is 19.

Adding to 33300031213 its reverse (31213000333), we get a palindrome (64513031546).

The spelling of 33300031213 in words is "thirty-three billion, three hundred million, thirty-one thousand, two hundred thirteen".