213441320311 has 24 divisors (see below), whose sum is σ = 234071612352. Its totient is φ = 193948300800.

The previous prime is 213441320297. The next prime is 213441320317. The reversal of 213441320311 is 113023144312.

It is not a de Polignac number, because 213441320311 - 2¹¹ = 213441318263 is a prime.

It is a super-2 number, since 2×213441320311² (a number of 23 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 (213441320317) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7026091 + ... + 7056403.

It is an arithmetic number, because the mean of its divisors is an integer number (9752983848).

Almost surely, 2^213441320311 is an apocalyptic number.

213441320311 is a deficient number, since it is larger than the sum of its proper divisors (20630292041).

213441320311 is a wasteful number, since it uses less digits than its factorization.

213441320311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30823 (or 30792 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 213441320311 its reverse (113023144312), we get a palindrome (326464464623).

The spelling of 213441320311 in words is "two hundred thirteen billion, four hundred forty-one million, three hundred twenty thousand, three hundred eleven".