221231313323 has 8 divisors (see below), whose sum is σ = 222744126288. Its totient is φ = 219720397824.

The previous prime is 221231313253. The next prime is 221231313341. The reversal of 221231313323 is 323313132122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221231313323 - 2¹⁴ = 221231296939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221231313292 and 221231313301.

It is not an unprimeable number, because it can be changed into a prime (221231313353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239990 + ... + 707147.

It is an arithmetic number, because the mean of its divisors is an integer number (27843015786).

Almost surely, 2^221231313323 is an apocalyptic number.

221231313323 is a deficient number, since it is larger than the sum of its proper divisors (1512812965).

221231313323 is a wasteful number, since it uses less digits than its factorization.

221231313323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948733.

The product of its digits is 3888, while the sum is 26.

Adding to 221231313323 its reverse (323313132122), we get a palindrome (544544445445).

The spelling of 221231313323 in words is "two hundred twenty-one billion, two hundred thirty-one million, three hundred thirteen thousand, three hundred twenty-three".