20044040231031 has 4 divisors (see below), whose sum is σ = 26725386974712. Its totient is φ = 13362693487352.

The previous prime is 20044040231029. The next prime is 20044040231099. The reversal of 20044040231031 is 13013204044002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20044040231031 - 2¹ = 20044040231029 is a prime.

It is a super-2 number, since 2×20044040231031² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20044040230992 and 20044040231010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20044040231021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3340673371836 + ... + 3340673371841.

It is an arithmetic number, because the mean of its divisors is an integer number (6681346743678).

Almost surely, 2^{20044040231031} is an apocalyptic number.

20044040231031 is a deficient number, since it is larger than the sum of its proper divisors (6681346743681).

20044040231031 is an equidigital number, since it uses as much as digits as its factorization.

20044040231031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6681346743680.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 20044040231031 its reverse (13013204044002), we get a palindrome (33057244275033).

The spelling of 20044040231031 in words is "twenty trillion, forty-four billion, forty million, two hundred thirty-one thousand, thirty-one".