1323232231 has 12 divisors (see below), whose sum is σ = 1345510080. Its totient is φ = 1301307200.

The previous prime is 1323232223. The next prime is 1323232283. The reversal of 1323232231 is 1322323231.

It is not a de Polignac number, because 1323232231 - 2³ = 1323232223 is a prime.

It is a super-2 number, since 2×1323232231² = 3501887074314474722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323232201) 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, 2762250 + ... + 2762728.

It is an arithmetic number, because the mean of its divisors is an integer number (112125840).

Almost surely, 2^1323232231 is an apocalyptic number.

1323232231 is a deficient number, since it is larger than the sum of its proper divisors (22277849).

1323232231 is an frugal number, since it uses more digits than its factorization.

1323232231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046 (or 963 counting only the distinct ones).

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

The square root of 1323232231 is about 36376.2591672096. The cubic root of 1323232231 is about 1097.8559423724.

Adding to 1323232231 its reverse (1322323231), we get a palindrome (2645555462).

The spelling of 1323232231 in words is "one billion, three hundred twenty-three million, two hundred thirty-two thousand, two hundred thirty-one".