40120212443042 has 8 divisors (see below), whose sum is σ = 60512806613532. Its totient is φ = 19949276905200.

The previous prime is 40120212442991. The next prime is 40120212443053. The reversal of 40120212443042 is 24034421202104.

It is a happy number.

40120212443042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 40048152946321 + 72059496721 = 6328361^2 + 268439^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 40120212442996 and 40120212443014.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55414657709 + ... + 55414658432.

Almost surely, 2^{40120212443042} is an apocalyptic number.

40120212443042 is a deficient number, since it is larger than the sum of its proper divisors (20392594170490).

40120212443042 is a wasteful number, since it uses less digits than its factorization.

40120212443042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110829316324.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 40120212443042 its reverse (24034421202104), we get a palindrome (64154633645146).

The spelling of 40120212443042 in words is "forty trillion, one hundred twenty billion, two hundred twelve million, four hundred forty-three thousand, forty-two".