12440403111234 has 32 divisors (see below), whose sum is σ = 29931796961280. Its totient is φ = 3367327157712.

The previous prime is 12440403111217. The next prime is 12440403111281. The reversal of 12440403111234 is 43211130404421.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7794737994 + ... + 7794739589.

It is an arithmetic number, because the mean of its divisors is an integer number (935368655040).

Almost surely, 2^{12440403111234} is an apocalyptic number.

12440403111234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12440403111234 is an abundant number, since it is smaller than the sum of its proper divisors (17491393850046).

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

12440403111234 is a wasteful number, since it uses less digits than its factorization.

12440403111234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15589477614.

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 12440403111234 its reverse (43211130404421), we get a palindrome (55651533515655).

The spelling of 12440403111234 in words is "twelve trillion, four hundred forty billion, four hundred three million, one hundred eleven thousand, two hundred thirty-four".