20144404011 has 8 divisors (see below), whose sum is σ = 26860055040. Its totient is φ = 13429177832.

The previous prime is 20144404003. The next prime is 20144404057. The reversal of 20144404011 is 11040444102.

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 20144404011 - 2³ = 20144404003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20144404081) 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, 29026 + ... + 202808.

It is an arithmetic number, because the mean of its divisors is an integer number (3357506880).

Almost surely, 2^20144404011 is an apocalyptic number.

20144404011 is a deficient number, since it is larger than the sum of its proper divisors (6715651029).

20144404011 is a wasteful number, since it uses less digits than its factorization.

20144404011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212425.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 20144404011 its reverse (11040444102), we get a palindrome (31184848113).

The spelling of 20144404011 in words is "twenty billion, one hundred forty-four million, four hundred four thousand, eleven".