331213221223 has 4 divisors (see below), whose sum is σ = 331337880720. Its totient is φ = 331088561728.

The previous prime is 331213221221. The next prime is 331213221247. The reversal of 331213221223 is 322122312133.

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 331213221223 - 2¹ = 331213221221 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 (331213221221) 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, 62325763 + ... + 62331076.

It is an arithmetic number, because the mean of its divisors is an integer number (82834470180).

Almost surely, 2^331213221223 is an apocalyptic number.

331213221223 is a deficient number, since it is larger than the sum of its proper divisors (124659497).

331213221223 is a wasteful number, since it uses less digits than its factorization.

331213221223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124659496.

The product of its digits is 2592, while the sum is 25.

Adding to 331213221223 its reverse (322122312133), we get a palindrome (653335533356).

The spelling of 331213221223 in words is "three hundred thirty-one billion, two hundred thirteen million, two hundred twenty-one thousand, two hundred twenty-three".