20213120111130 has 160 divisors (see below), whose sum is σ = 54875843535744. Its totient is φ = 5338129682304.

The previous prime is 20213120111087. The next prime is 20213120111131. The reversal of 20213120111130 is 3111102131202.

20213120111130 is a `hidden beast` number, since 202 + 131 + 201 + 1 + 1 + 130 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (20213120111131) 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 79 ways as a sum of consecutive naturals, for example, 292303339 + ... + 292372481.

Almost surely, 2^{20213120111130} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20213120111130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27437921767872).

20213120111130 is an abundant number, since it is smaller than the sum of its proper divisors (34662723424614).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20213120111130 is a wasteful number, since it uses less digits than its factorization.

20213120111130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72642 (or 72633 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 20213120111130 its reverse (3111102131202), we get a palindrome (23324222242332).

The spelling of 20213120111130 in words is "twenty trillion, two hundred thirteen billion, one hundred twenty million, one hundred eleven thousand, one hundred thirty".