20111232440043 has 48 divisors (see below), whose sum is σ = 31291654268160. Its totient is φ = 12405628872000.

The previous prime is 20111232440041. The next prime is 20111232440059. The reversal of 20111232440043 is 34004423211102.

20111232440043 is a `hidden beast` number, since 20 + 1 + 1 + 1 + 232 + 4 + 400 + 4 + 3 = 666.

It is not a de Polignac number, because 20111232440043 - 2¹ = 20111232440041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20111232439989 and 20111232440016.

It is not an unprimeable number, because it can be changed into a prime (20111232440041) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 124192138 + ... + 124353968.

It is an arithmetic number, because the mean of its divisors is an integer number (651909463920).

Almost surely, 2^{20111232440043} is an apocalyptic number.

20111232440043 is a deficient number, since it is larger than the sum of its proper divisors (11180421828117).

20111232440043 is a wasteful number, since it uses less digits than its factorization.

20111232440043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178800 (or 178797 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 20111232440043 its reverse (34004423211102), we get a palindrome (54115655651145).

The spelling of 20111232440043 in words is "twenty trillion, one hundred eleven billion, two hundred thirty-two million, four hundred forty thousand, forty-three".