213303022231331 has 4 divisors (see below), whose sum is σ = 225850258833192. Its totient is φ = 200755785629472.

The previous prime is 213303022231303. The next prime is 213303022231337. The reversal of 213303022231331 is 133132220303312.

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 213303022231331 - 2¹⁰ = 213303022230307 is a prime.

It is a super-2 number, since 2×213303022231331² (a number of 29 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 = 213303022231294 and 213303022231303.

It is not an unprimeable number, because it can be changed into a prime (213303022231337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6273618300905 + ... + 6273618300938.

It is an arithmetic number, because the mean of its divisors is an integer number (56462564708298).

Almost surely, 2^{213303022231331} is an apocalyptic number.

213303022231331 is a deficient number, since it is larger than the sum of its proper divisors (12547236601861).

213303022231331 is a wasteful number, since it uses less digits than its factorization.

213303022231331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12547236601860.

The product of its (nonzero) digits is 11664, while the sum is 29.

Adding to 213303022231331 its reverse (133132220303312), we get a palindrome (346435242534643).

The spelling of 213303022231331 in words is "two hundred thirteen trillion, three hundred three billion, twenty-two million, two hundred thirty-one thousand, three hundred thirty-one".