220231032321 has 8 divisors (see below), whose sum is σ = 293766286464. Its totient is φ = 146758233200.

The previous prime is 220231032289. The next prime is 220231032337. The reversal of 220231032321 is 123230132022.

It is a happy number.

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 220231032321 - 2⁵ = 220231032289 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (220231032391) 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, 15605526 + ... + 15619631.

It is an arithmetic number, because the mean of its divisors is an integer number (36720785808).

Almost surely, 2^220231032321 is an apocalyptic number.

It is an amenable number.

220231032321 is a deficient number, since it is larger than the sum of its proper divisors (73535254143).

220231032321 is a wasteful number, since it uses less digits than its factorization.

220231032321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31227511.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 220231032321 its reverse (123230132022), we get a palindrome (343461164343).

The spelling of 220231032321 in words is "two hundred twenty billion, two hundred thirty-one million, thirty-two thousand, three hundred twenty-one".