12040043242434 has 16 divisors (see below), whose sum is σ = 24640088496672. Its totient is φ = 3920014078848.

The previous prime is 12040043242369. The next prime is 12040043242489. The reversal of 12040043242434 is 43424234004021.

It is a junction number, because it is equal to n+sod(n) for n = 12040043242395 and 12040043242404.

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, 23333416879 + ... + 23333417394.

It is an arithmetic number, because the mean of its divisors is an integer number (1540005531042).

Almost surely, 2^{12040043242434} is an apocalyptic number.

12040043242434 is an abundant number, since it is smaller than the sum of its proper divisors (12600045254238).

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

12040043242434 is a wasteful number, since it uses less digits than its factorization.

12040043242434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46666834321.

The product of its (nonzero) digits is 73728, while the sum is 33.

Adding to 12040043242434 its reverse (43424234004021), we get a palindrome (55464277246455).

The spelling of 12040043242434 in words is "twelve trillion, forty billion, forty-three million, two hundred forty-two thousand, four hundred thirty-four".