20001440141 has 8 divisors (see below), whose sum is σ = 20133606240. Its totient is φ = 19869583888.

The previous prime is 20001440111. The next prime is 20001440143. The reversal of 20001440141 is 14104410002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20001440141 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 (20001440143) 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, 52790 + ... + 206856.

It is an arithmetic number, because the mean of its divisors is an integer number (2516700780).

Almost surely, 2^20001440141 is an apocalyptic number.

It is an amenable number.

20001440141 is a deficient number, since it is larger than the sum of its proper divisors (132166099).

20001440141 is a wasteful number, since it uses less digits than its factorization.

20001440141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154923.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20001440141 its reverse (14104410002), we get a palindrome (34105850143).

The spelling of 20001440141 in words is "twenty billion, one million, four hundred forty thousand, one hundred forty-one".