12243040002 has 40 divisors (see below), whose sum is σ = 27439820496. Its totient is φ = 4080070008.

The previous prime is 12243039989. The next prime is 12243040003. The reversal of 12243040002 is 20004034221.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (12243040003) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1272253 + ... + 1281839.

Almost surely, 2^12243040002 is an apocalyptic number.

12243040002 is an abundant number, since it is smaller than the sum of its proper divisors (15196780494).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12243040002 is an equidigital number, since it uses as much as digits as its factorization.

12243040002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17484 (or 17475 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 12243040002 its reverse (20004034221), we get a palindrome (32247074223).

The spelling of 12243040002 in words is "twelve billion, two hundred forty-three million, forty thousand, two".