20440311141 has 8 divisors (see below), whose sum is σ = 27254535840. Its totient is φ = 13626480272.

The previous prime is 20440311127. The next prime is 20440311161. The reversal of 20440311141 is 14111304402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20440311141 - 2¹⁰ = 20440310117 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20440311161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58306 + ... + 210428.

It is an arithmetic number, because the mean of its divisors is an integer number (3406816980).

Almost surely, 2^20440311141 is an apocalyptic number.

It is an amenable number.

20440311141 is a deficient number, since it is larger than the sum of its proper divisors (6814224699).

20440311141 is a wasteful number, since it uses less digits than its factorization.

20440311141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196915.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 20440311141 its reverse (14111304402), we get a palindrome (34551615543).

The spelling of 20440311141 in words is "twenty billion, four hundred forty million, three hundred eleven thousand, one hundred forty-one".