20330220111131 has 16 divisors (see below), whose sum is σ = 23464865830848. Its totient is φ = 17253160704000.

The previous prime is 20330220111109. The next prime is 20330220111191. The reversal of 20330220111131 is 13111102203302.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20330220111131 - 2²⁶ = 20330153002267 is a prime.

It is a super-2 number, since 2×20330220111131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20330220111191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95848811 + ... + 96060683.

It is an arithmetic number, because the mean of its divisors is an integer number (1466554114428).

Almost surely, 2^{20330220111131} is an apocalyptic number.

20330220111131 is a deficient number, since it is larger than the sum of its proper divisors (3134645719717).

20330220111131 is a wasteful number, since it uses less digits than its factorization.

20330220111131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347702.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 20330220111131 its reverse (13111102203302), we get a palindrome (33441322314433).

The spelling of 20330220111131 in words is "twenty trillion, three hundred thirty billion, two hundred twenty million, one hundred eleven thousand, one hundred thirty-one".