23331331330221 has 4 divisors (see below), whose sum is σ = 31108441773632. Its totient is φ = 15554220886812.

The previous prime is 23331331330217. The next prime is 23331331330249. The reversal of 23331331330221 is 12203313313332.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 23331331330221 - 2² = 23331331330217 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 (23331331330721) 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, 3888555221701 + ... + 3888555221706.

It is an arithmetic number, because the mean of its divisors is an integer number (7777110443408).

Almost surely, 2^{23331331330221} is an apocalyptic number.

It is an amenable number.

23331331330221 is a deficient number, since it is larger than the sum of its proper divisors (7777110443411).

23331331330221 is an equidigital number, since it uses as much as digits as its factorization.

23331331330221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7777110443410.

The product of its (nonzero) digits is 17496, while the sum is 30.

Adding to 23331331330221 its reverse (12203313313332), we get a palindrome (35534644643553).

The spelling of 23331331330221 in words is "twenty-three trillion, three hundred thirty-one billion, three hundred thirty-one million, three hundred thirty thousand, two hundred twenty-one".