213310320331 has 4 divisors (see below), whose sum is σ = 213355147600. Its totient is φ = 213265493064.

The previous prime is 213310320329. The next prime is 213310320383. The reversal of 213310320331 is 133023013312.

213310320331 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 213310320331 - 2¹ = 213310320329 is a prime.

It is a super-2 number, since 2×213310320331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213310320631) 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, 22406496 + ... + 22416013.

It is an arithmetic number, because the mean of its divisors is an integer number (53338786900).

Almost surely, 2^213310320331 is an apocalyptic number.

213310320331 is a deficient number, since it is larger than the sum of its proper divisors (44827269).

213310320331 is an equidigital number, since it uses as much as digits as its factorization.

213310320331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44827268.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 213310320331 its reverse (133023013312), we get a palindrome (346333333643).

The spelling of 213310320331 in words is "two hundred thirteen billion, three hundred ten million, three hundred twenty thousand, three hundred thirty-one".