213213333133 has 4 divisors (see below), whose sum is σ = 213219665568. Its totient is φ = 213207000700.

The previous prime is 213213333089. The next prime is 213213333149. The reversal of 213213333133 is 331333312312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 213213333133 - 2¹³ = 213213324941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213213333173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3115441 + ... + 3183142.

It is an arithmetic number, because the mean of its divisors is an integer number (53304916392).

Almost surely, 2^213213333133 is an apocalyptic number.

It is an amenable number.

213213333133 is a deficient number, since it is larger than the sum of its proper divisors (6332435).

213213333133 is an equidigital number, since it uses as much as digits as its factorization.

213213333133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6332434.

The product of its digits is 8748, while the sum is 28.

Adding to 213213333133 its reverse (331333312312), we get a palindrome (544546645445).

The spelling of 213213333133 in words is "two hundred thirteen billion, two hundred thirteen million, three hundred thirty-three thousand, one hundred thirty-three".