221030332323 has 4 divisors (see below), whose sum is σ = 294707109768. Its totient is φ = 147353554880.

The previous prime is 221030332319. The next prime is 221030332339. The reversal of 221030332323 is 323233030122.

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 221030332323 - 2² = 221030332319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221030332293 and 221030332302.

It is not an unprimeable number, because it can be changed into a prime (221030332123) 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, 36838388718 + ... + 36838388723.

It is an arithmetic number, because the mean of its divisors is an integer number (73676777442).

Almost surely, 2^221030332323 is an apocalyptic number.

221030332323 is a deficient number, since it is larger than the sum of its proper divisors (73676777445).

221030332323 is an equidigital number, since it uses as much as digits as its factorization.

221030332323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73676777444.

The product of its (nonzero) digits is 3888, while the sum is 24.

Adding to 221030332323 its reverse (323233030122), we get a palindrome (544263362445).

The spelling of 221030332323 in words is "two hundred twenty-one billion, thirty million, three hundred thirty-two thousand, three hundred twenty-three".