20440441141 has 4 divisors (see below), whose sum is σ = 20875344192. Its totient is φ = 20005538092.

The previous prime is 20440441121. The next prime is 20440441169. The reversal of 20440441141 is 14114404402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20440441141 - 2¹³ = 20440432949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20440441121) 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, 217451455 + ... + 217451548.

It is an arithmetic number, because the mean of its divisors is an integer number (5218836048).

Almost surely, 2^20440441141 is an apocalyptic number.

It is an amenable number.

20440441141 is a deficient number, since it is larger than the sum of its proper divisors (434903051).

20440441141 is an equidigital number, since it uses as much as digits as its factorization.

20440441141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434903050.

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 20440441141 its reverse (14114404402), we get a palindrome (34554845543).

The spelling of 20440441141 in words is "twenty billion, four hundred forty million, four hundred forty-one thousand, one hundred forty-one".