231021103321 has 8 divisors (see below), whose sum is σ = 234630678240. Its totient is φ = 227431199712.

The previous prime is 231021103309. The next prime is 231021103349. The reversal of 231021103321 is 123301120132.

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 231021103321 - 2³¹ = 228873619673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231021103351) 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, 4894156 + ... + 4941133.

It is an arithmetic number, because the mean of its divisors is an integer number (29328834780).

Almost surely, 2^231021103321 is an apocalyptic number.

It is an amenable number.

231021103321 is a deficient number, since it is larger than the sum of its proper divisors (3609574919).

231021103321 is an equidigital number, since it uses as much as digits as its factorization.

231021103321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9835655.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 231021103321 its reverse (123301120132), we get a palindrome (354322223453).

The spelling of 231021103321 in words is "two hundred thirty-one billion, twenty-one million, one hundred three thousand, three hundred twenty-one".