12331231001 has 4 divisors (see below), whose sum is σ = 12335938404. Its totient is φ = 12326523600.

The previous prime is 12331230997. The next prime is 12331231009. The reversal of 12331231001 is 10013213321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10013213321 = 151 ⋅66312671.

It can be written as a sum of positive squares in 2 ways, for example, as 11456491225 + 874739776 = 107035^2 + 29576^2 .

It is a cyclic number.

It is not a de Polignac number, because 12331231001 - 2² = 12331230997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12331231009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2349770 + ... + 2355011.

It is an arithmetic number, because the mean of its divisors is an integer number (3083984601).

Almost surely, 2^12331231001 is an apocalyptic number.

It is an amenable number.

12331231001 is a deficient number, since it is larger than the sum of its proper divisors (4707403).

12331231001 is an equidigital number, since it uses as much as digits as its factorization.

12331231001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4707402.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 12331231001 its reverse (10013213321), we get a palindrome (22344444322).

The spelling of 12331231001 in words is "twelve billion, three hundred thirty-one million, two hundred thirty-one thousand, one".