2331221323 has 4 divisors (see below), whose sum is σ = 2369438128. Its totient is φ = 2293004520.

The previous prime is 2331221317. The next prime is 2331221329. The reversal of 2331221323 is 3231221332.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2331221317) and next prime (2331221329).

It is a cyclic number.

It is not a de Polignac number, because 2331221323 - 2⁹ = 2331220811 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2331221294 and 2331221303.

It is not an unprimeable number, because it can be changed into a prime (2331221329) 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, 19108311 + ... + 19108432.

It is an arithmetic number, because the mean of its divisors is an integer number (592359532).

Almost surely, 2^2331221323 is an apocalyptic number.

2331221323 is a deficient number, since it is larger than the sum of its proper divisors (38216805).

2331221323 is an equidigital number, since it uses as much as digits as its factorization.

2331221323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38216804.

The product of its digits is 1296, while the sum is 22.

The square root of 2331221323 is about 48282.7228209015. The cubic root of 2331221323 is about 1325.9521004046.

Adding to 2331221323 its reverse (3231221332), we get a palindrome (5562442655).

Subtracting 2331221323 from its reverse (3231221332), we obtain a palindrome (900000009).

The spelling of 2331221323 in words is "two billion, three hundred thirty-one million, two hundred twenty-one thousand, three hundred twenty-three".