20045130111 has 12 divisors (see below), whose sum is σ = 28956220488. Its totient is φ = 13362430704.

The previous prime is 20045130097. The next prime is 20045130113. The reversal of 20045130111 is 11103154002.

20045130111 is a `hidden beast` number, since 200 + 451 + 3 + 0 + 1 + 11 = 666.

It is not a de Polignac number, because 20045130111 - 2¹¹ = 20045128063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20045130113) 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 11 ways as a sum of consecutive naturals, for example, 58561 + ... + 208613.

It is an arithmetic number, because the mean of its divisors is an integer number (2413018374).

Almost surely, 2^20045130111 is an apocalyptic number.

20045130111 is a deficient number, since it is larger than the sum of its proper divisors (8911090377).

20045130111 is a wasteful number, since it uses less digits than its factorization.

20045130111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164902 (or 164899 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

Adding to 20045130111 its reverse (11103154002), we get a palindrome (31148284113).

The spelling of 20045130111 in words is "twenty billion, forty-five million, one hundred thirty thousand, one hundred eleven".