12231440309 has 8 divisors (see below), whose sum is σ = 13345612320. Its totient is φ = 11117638800.

The previous prime is 12231440237. The next prime is 12231440339. The reversal of 12231440309 is 90304413221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12231440309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12231440339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21194 + ... + 157835.

It is an arithmetic number, because the mean of its divisors is an integer number (1668201540).

Almost surely, 2^12231440309 is an apocalyptic number.

It is an amenable number.

12231440309 is a deficient number, since it is larger than the sum of its proper divisors (1114172011).

12231440309 is a wasteful number, since it uses less digits than its factorization.

12231440309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185251.

The product of its (nonzero) digits is 5184, while the sum is 29.

The spelling of 12231440309 in words is "twelve billion, two hundred thirty-one million, four hundred forty thousand, three hundred nine".