20341043221111 has 24 divisors (see below), whose sum is σ = 21743813905344. Its totient is φ = 19024363438080.

The previous prime is 20341043221099. The next prime is 20341043221117. The reversal of 20341043221111 is 11112234014302.

It is not a de Polignac number, because 20341043221111 - 2¹⁹ = 20341042696823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20341043221117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50612691 + ... + 51013003.

It is an arithmetic number, because the mean of its divisors is an integer number (905992246056).

Almost surely, 2^{20341043221111} is an apocalyptic number.

20341043221111 is a deficient number, since it is larger than the sum of its proper divisors (1402770684233).

20341043221111 is a wasteful number, since it uses less digits than its factorization.

20341043221111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401451 (or 401434 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 20341043221111 its reverse (11112234014302), we get a palindrome (31453277235413).

The spelling of 20341043221111 in words is "twenty trillion, three hundred forty-one billion, forty-three million, two hundred twenty-one thousand, one hundred eleven".