20044411331 has 8 divisors (see below), whose sum is σ = 23375407200. Its totient is φ = 17180923704.

The previous prime is 20044411307. The next prime is 20044411333. The reversal of 20044411331 is 13311444002.

It is not a de Polignac number, because 20044411331 - 2²² = 20040217027 is a prime.

It is a super-2 number, since 2×20044411331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20044411297 and 20044411306.

It is not an unprimeable number, because it can be changed into a prime (20044411333) 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 7 ways as a sum of consecutive naturals, for example, 29218916 + ... + 29219601.

It is an arithmetic number, because the mean of its divisors is an integer number (2921925900).

Almost surely, 2^20044411331 is an apocalyptic number.

20044411331 is a deficient number, since it is larger than the sum of its proper divisors (3330995869).

20044411331 is an frugal number, since it uses more digits than its factorization.

20044411331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58438538 (or 58438524 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 20044411331 its reverse (13311444002), we get a palindrome (33355855333).

The spelling of 20044411331 in words is "twenty billion, forty-four million, four hundred eleven thousand, three hundred thirty-one".