144040020420011 has 4 divisors (see below), whose sum is σ = 144041384373072. Its totient is φ = 144038656466952.

The previous prime is 144040020419917. The next prime is 144040020420013. The reversal of 144040020420011 is 110024020040441.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144040020420011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144040020420013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 681818111 + ... + 682029336.

It is an arithmetic number, because the mean of its divisors is an integer number (36010346093268).

Almost surely, 2^{144040020420011} is an apocalyptic number.

144040020420011 is a deficient number, since it is larger than the sum of its proper divisors (1363953061).

144040020420011 is a wasteful number, since it uses less digits than its factorization.

144040020420011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1363953060.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 144040020420011 its reverse (110024020040441), we get a palindrome (254064040460452).

The spelling of 144040020420011 in words is "one hundred forty-four trillion, forty billion, twenty million, four hundred twenty thousand, eleven".