331022011213 has 4 divisors (see below), whose sum is σ = 331482404160. Its totient is φ = 330561618268.

The previous prime is 331022011193. The next prime is 331022011237. The reversal of 331022011213 is 312110220133.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 331022011213 - 2⁹ = 331022010701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331022011273) 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, 230195395 + ... + 230196832.

It is an arithmetic number, because the mean of its divisors is an integer number (82870601040).

Almost surely, 2^331022011213 is an apocalyptic number.

It is an amenable number.

331022011213 is a deficient number, since it is larger than the sum of its proper divisors (460392947).

331022011213 is an equidigital number, since it uses as much as digits as its factorization.

331022011213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460392946.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 331022011213 its reverse (312110220133), we get a palindrome (643132231346).

The spelling of 331022011213 in words is "three hundred thirty-one billion, twenty-two million, eleven thousand, two hundred thirteen".