213130330331 has 4 divisors (see below), whose sum is σ = 214663642200. Its totient is φ = 211597018464.

The previous prime is 213130330321. The next prime is 213130330337. The reversal of 213130330331 is 133033031312.

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 213130330331 - 2²⁶ = 213063221467 is a prime.

It is a super-2 number, since 2×213130330331² (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 = 213130330297 and 213130330306.

It is not an unprimeable number, because it can be changed into a prime (213130330337) 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, 766655726 + ... + 766656003.

It is an arithmetic number, because the mean of its divisors is an integer number (53665910550).

Almost surely, 2^213130330331 is an apocalyptic number.

213130330331 is a deficient number, since it is larger than the sum of its proper divisors (1533311869).

213130330331 is a wasteful number, since it uses less digits than its factorization.

213130330331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1533311868.

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

Adding to 213130330331 its reverse (133033031312), we get a palindrome (346163361643).

The spelling of 213130330331 in words is "two hundred thirteen billion, one hundred thirty million, three hundred thirty thousand, three hundred thirty-one".