12231143017 has 4 divisors (see below), whose sum is σ = 12950622036. Its totient is φ = 11511664000.

The previous prime is 12231143009. The next prime is 12231143081. The reversal of 12231143017 is 71034113221.

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 4219281936 + 8011861081 = 64956^2 + 89509^2 .

It is a cyclic number.

It is not a de Polignac number, because 12231143017 - 2³ = 12231143009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12231142982 and 12231143000.

It is not an unprimeable number, because it can be changed into a prime (12231113017) 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, 359739484 + ... + 359739517.

It is an arithmetic number, because the mean of its divisors is an integer number (3237655509).

Almost surely, 2^12231143017 is an apocalyptic number.

12231143017 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12231143017 is a deficient number, since it is larger than the sum of its proper divisors (719479019).

12231143017 is an equidigital number, since it uses as much as digits as its factorization.

12231143017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719479018.

The product of its (nonzero) digits is 1008, while the sum is 25.

Adding to 12231143017 its reverse (71034113221), we get a palindrome (83265256238).

The spelling of 12231143017 in words is "twelve billion, two hundred thirty-one million, one hundred forty-three thousand, seventeen".