12231332033 has 4 divisors (see below), whose sum is σ = 12368762820. Its totient is φ = 12093901248.

The previous prime is 12231331999. The next prime is 12231332039. The reversal of 12231332033 is 33023313221.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6313414849 + 5917917184 = 79457^2 + 76928^2 .

It is a cyclic number.

It is not a de Polignac number, because 12231332033 - 2⁶ = 12231331969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12231332039) 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, 68715260 + ... + 68715437.

It is an arithmetic number, because the mean of its divisors is an integer number (3092190705).

Almost surely, 2^12231332033 is an apocalyptic number.

It is an amenable number.

12231332033 is a deficient number, since it is larger than the sum of its proper divisors (137430787).

12231332033 is an equidigital number, since it uses as much as digits as its factorization.

12231332033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137430786.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 12231332033 its reverse (33023313221), we get a palindrome (45254645254).

The spelling of 12231332033 in words is "twelve billion, two hundred thirty-one million, three hundred thirty-two thousand, thirty-three".