20440141211 has 6 divisors (see below), whose sum is σ = 23777307180. Its totient is φ = 17520120996.

The previous prime is 20440141171. The next prime is 20440141231. The reversal of 20440141211 is 11214104402.

It is a de Polignac number, because none of the positive numbers 2^k-20440141211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20440141231) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 208572821 + ... + 208572918.

It is an arithmetic number, because the mean of its divisors is an integer number (3962884530).

Almost surely, 2^20440141211 is an apocalyptic number.

20440141211 is a deficient number, since it is larger than the sum of its proper divisors (3337165969).

20440141211 is an equidigital number, since it uses as much as digits as its factorization.

20440141211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417145753 (or 417145746 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 20440141211 its reverse (11214104402), we get a palindrome (31654245613).

The spelling of 20440141211 in words is "twenty billion, four hundred forty million, one hundred forty-one thousand, two hundred eleven".