20005125003111 has 32 divisors (see below), whose sum is σ = 28181840947200. Its totient is φ = 12602227034880.

The previous prime is 20005125003067. The next prime is 20005125003163. The reversal of 20005125003111 is 11130052150002.

It is not a de Polignac number, because 20005125003111 - 2³³ = 19996535068519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20005125003211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84970446 + ... + 85205556.

It is an arithmetic number, because the mean of its divisors is an integer number (880682529600).

Almost surely, 2^{20005125003111} is an apocalyptic number.

20005125003111 is a deficient number, since it is larger than the sum of its proper divisors (8176715944089).

20005125003111 is a wasteful number, since it uses less digits than its factorization.

20005125003111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255999.

The product of its (nonzero) digits is 300, while the sum is 21.

Adding to 20005125003111 its reverse (11130052150002), we get a palindrome (31135177153113).

The spelling of 20005125003111 in words is "twenty trillion, five billion, one hundred twenty-five million, three thousand, one hundred eleven".