331220322213223 has 4 divisors (see below), whose sum is σ = 331220945546848. Its totient is φ = 331219698879600.

The previous prime is 331220322213173. The next prime is 331220322213233. The reversal of 331220322213223 is 322312223022133.

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 331220322213223 - 2²¹ = 331220320116071 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 (331220322213233) 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, 310869078 + ... + 311932723.

It is an arithmetic number, because the mean of its divisors is an integer number (82805236386712).

Almost surely, 2^{331220322213223} is an apocalyptic number.

331220322213223 is a deficient number, since it is larger than the sum of its proper divisors (623333625).

331220322213223 is an equidigital number, since it uses as much as digits as its factorization.

331220322213223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623333624.

The product of its (nonzero) digits is 31104, while the sum is 31.

Adding to 331220322213223 its reverse (322312223022133), we get a palindrome (653532545235356).

The spelling of 331220322213223 in words is "three hundred thirty-one trillion, two hundred twenty billion, three hundred twenty-two million, two hundred thirteen thousand, two hundred twenty-three".