1231232323 has 4 divisors (see below), whose sum is σ = 1273688640. Its totient is φ = 1188776008.

The previous prime is 1231232311. The next prime is 1231232333. The reversal of 1231232323 is 3232321321.

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

It is a cyclic number.

It is not a de Polignac number, because 1231232323 - 2²⁵ = 1197677891 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1231232294 and 1231232303.

It is not an unprimeable number, because it can be changed into a prime (1231232333) 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, 21228115 + ... + 21228172.

It is an arithmetic number, because the mean of its divisors is an integer number (318422160).

Almost surely, 2^1231232323 is an apocalyptic number.

1231232323 is a deficient number, since it is larger than the sum of its proper divisors (42456317).

1231232323 is an equidigital number, since it uses as much as digits as its factorization.

1231232323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42456316.

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

The square root of 1231232323 is about 35088.9202313209. The cubic root of 1231232323 is about 1071.7989718624.

Adding to 1231232323 its reverse (3232321321), we get a palindrome (4463553644).

The spelling of 1231232323 in words is "one billion, two hundred thirty-one million, two hundred thirty-two thousand, three hundred twenty-three".