33011013213 has 16 divisors (see below), whose sum is σ = 49508976000. Its totient is φ = 22007340684.

The previous prime is 33011013187. The next prime is 33011013227. The reversal of 33011013213 is 31231011033.

It is a happy number.

33011013213 is a `hidden beast` number, since 330 + 1 + 10 + 1 + 321 + 3 = 666.

It is not a de Polignac number, because 33011013213 - 2²⁴ = 32994235997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33011013283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7544913 + ... + 7549286.

It is an arithmetic number, because the mean of its divisors is an integer number (3094311000).

Almost surely, 2^33011013213 is an apocalyptic number.

It is an amenable number.

33011013213 is a deficient number, since it is larger than the sum of its proper divisors (16497962787).

33011013213 is an frugal number, since it uses more digits than its factorization.

33011013213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15094220 (or 15094202 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 33011013213 its reverse (31231011033), we get a palindrome (64242024246).

The spelling of 33011013213 in words is "thirty-three billion, eleven million, thirteen thousand, two hundred thirteen".