213333001331 has 4 divisors (see below), whose sum is σ = 213581352600. Its totient is φ = 213084650064.

The previous prime is 213333001307. The next prime is 213333001333. The reversal of 213333001331 is 133100333312.

213333001331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 213333001331 - 2¹⁴ = 213332984947 is a prime.

It is a super-2 number, since 2×213333001331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213333001297 and 213333001306.

It is not an unprimeable number, because it can be changed into a prime (213333001333) 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 3 ways as a sum of consecutive naturals, for example, 124174346 + ... + 124176063.

It is an arithmetic number, because the mean of its divisors is an integer number (53395338150).

Almost surely, 2^213333001331 is an apocalyptic number.

213333001331 is a deficient number, since it is larger than the sum of its proper divisors (248351269).

213333001331 is an equidigital number, since it uses as much as digits as its factorization.

213333001331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248351268.

The product of its (nonzero) digits is 1458, while the sum is 23.

Adding to 213333001331 its reverse (133100333312), we get a palindrome (346433334643).

The spelling of 213333001331 in words is "two hundred thirteen billion, three hundred thirty-three million, one thousand, three hundred thirty-one".