12013243240 has 64 divisors (see below), whose sum is σ = 29057875200. Its totient is φ = 4455514368.

The previous prime is 12013243223. The next prime is 12013243241. The reversal of 12013243240 is 4234231021.

It is not an unprimeable number, because it can be changed into a prime (12013243241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132439 + ... + 203878.

It is an arithmetic number, because the mean of its divisors is an integer number (454029300).

Almost surely, 2^12013243240 is an apocalyptic number.

12013243240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12013243240 is an abundant number, since it is smaller than the sum of its proper divisors (17044631960).

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

12013243240 is a wasteful number, since it uses less digits than its factorization.

12013243240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336394 (or 336390 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 12013243240 its reverse (4234231021), we get a palindrome (16247474261).

The spelling of 12013243240 in words is "twelve billion, thirteen million, two hundred forty-three thousand, two hundred forty".