2231211323 has 12 divisors (see below), whose sum is σ = 2455829040. Its totient is φ = 2025611280.

The previous prime is 2231211317. The next prime is 2231211383. The reversal of 2231211323 is 3231121322.

It is not a de Polignac number, because 2231211323 - 2¹⁸ = 2230949179 is a prime.

It is a super-3 number, since 3×2231211323³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2231211295 and 2231211304.

It is not an unprimeable number, because it can be changed into a prime (2231211313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79418 + ... + 103776.

It is an arithmetic number, because the mean of its divisors is an integer number (204652420).

Almost surely, 2^2231211323 is an apocalyptic number.

2231211323 is a deficient number, since it is larger than the sum of its proper divisors (224617717).

2231211323 is a wasteful number, since it uses less digits than its factorization.

2231211323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25138 (or 25127 counting only the distinct ones).

The product of its digits is 432, while the sum is 20.

The square root of 2231211323 is about 47235.6996666716. The cubic root of 2231211323 is about 1306.7130701696.

Adding to 2231211323 its reverse (3231121322), we get a palindrome (5462332645).

Subtracting 2231211323 from its reverse (3231121322), we obtain a palindrome (999909999).

The spelling of 2231211323 in words is "two billion, two hundred thirty-one million, two hundred eleven thousand, three hundred twenty-three".