20043144501 has 8 divisors (see below), whose sum is σ = 27292792704. Its totient is φ = 13077796320.

The previous prime is 20043144497. The next prime is 20043144509. The reversal of 20043144501 is 10544134002.

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

It is not a de Polignac number, because 20043144501 - 2² = 20043144497 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20043144509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71074840 + ... + 71075121.

It is an arithmetic number, because the mean of its divisors is an integer number (3411599088).

Almost surely, 2^20043144501 is an apocalyptic number.

It is an amenable number.

20043144501 is a deficient number, since it is larger than the sum of its proper divisors (7249648203).

20043144501 is a wasteful number, since it uses less digits than its factorization.

20043144501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142150011.

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 20043144501 its reverse (10544134002), we get a palindrome (30587278503).

The spelling of 20043144501 in words is "twenty billion, forty-three million, one hundred forty-four thousand, five hundred one".