20330220331111 has 4 divisors (see below), whose sum is σ = 20330234266824. Its totient is φ = 20330206395400.

The previous prime is 20330220331051. The next prime is 20330220331121. The reversal of 20330220331111 is 11113302203302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20330220331111 - 2⁹ = 20330220330599 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 (20330220331121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4484560 + ... + 7795621.

It is an arithmetic number, because the mean of its divisors is an integer number (5082558566706).

Almost surely, 2^{20330220331111} is an apocalyptic number.

20330220331111 is a deficient number, since it is larger than the sum of its proper divisors (13935713).

20330220331111 is a wasteful number, since it uses less digits than its factorization.

20330220331111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13935712.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 20330220331111 its reverse (11113302203302), we get a palindrome (31443522534413).

The spelling of 20330220331111 in words is "twenty trillion, three hundred thirty billion, two hundred twenty million, three hundred thirty-one thousand, one hundred eleven".