12440243030 has 16 divisors (see below), whose sum is σ = 22597874640. Its totient is φ = 4930444512.

The previous prime is 12440243003. The next prime is 12440243041. The reversal of 12440243030 is 3034204421.

It is a junction number, because it is equal to n+sod(n) for n = 12440242987 and 12440243005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5705444 + ... + 5707623.

It is an arithmetic number, because the mean of its divisors is an integer number (1412367165).

Almost surely, 2^12440243030 is an apocalyptic number.

12440243030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12440243030 is a deficient number, since it is larger than the sum of its proper divisors (10157631610).

12440243030 is a wasteful number, since it uses less digits than its factorization.

12440243030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11413183.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 12440243030 its reverse (3034204421), we get a palindrome (15474447451).

The spelling of 12440243030 in words is "twelve billion, four hundred forty million, two hundred forty-three thousand, thirty".