20001143144311 has 16 divisors (see below), whose sum is σ = 23345567400960. Its totient is φ = 16778522414880.

The previous prime is 20001143144287. The next prime is 20001143144327. The reversal of 20001143144311 is 11344134110002.

It is a cyclic number.

It is not a de Polignac number, because 20001143144311 - 2⁷ = 20001143144183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001143144611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9171196 + ... + 11140606.

It is an arithmetic number, because the mean of its divisors is an integer number (1459097962560).

Almost surely, 2^{20001143144311} is an apocalyptic number.

20001143144311 is a deficient number, since it is larger than the sum of its proper divisors (3344424256649).

20001143144311 is a wasteful number, since it uses less digits than its factorization.

20001143144311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000334.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 20001143144311 its reverse (11344134110002), we get a palindrome (31345277254313).

The spelling of 20001143144311 in words is "twenty trillion, one billion, one hundred forty-three million, one hundred forty-four thousand, three hundred eleven".