20004403001131 has 16 divisors (see below), whose sum is σ = 21879341107200. Its totient is φ = 18217430104608.

The previous prime is 20004403001123. The next prime is 20004403001137. The reversal of 20004403001131 is 13110030440002.

It is a cyclic number.

It is not a de Polignac number, because 20004403001131 - 2³ = 20004403001123 is a prime.

It is a super-2 number, since 2×20004403001131² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 20004403001099 and 20004403001108.

It is not an unprimeable number, because it can be changed into a prime (20004403001137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79843275 + ... + 80093428.

It is an arithmetic number, because the mean of its divisors is an integer number (1367458819200).

Almost surely, 2^{20004403001131} is an apocalyptic number.

20004403001131 is a deficient number, since it is larger than the sum of its proper divisors (1874938106069).

20004403001131 is a wasteful number, since it uses less digits than its factorization.

20004403001131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159936978.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20004403001131 its reverse (13110030440002), we get a palindrome (33114433441133).

The spelling of 20004403001131 in words is "twenty trillion, four billion, four hundred three million, one thousand, one hundred thirty-one".