20001444103 has 4 divisors (see below), whose sum is σ = 20226179520. Its totient is φ = 19776708688.

The previous prime is 20001444097. The next prime is 20001444143. The reversal of 20001444103 is 30144410002.

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

It is a cyclic number.

It is not a de Polignac number, because 20001444103 - 2⁹ = 20001443591 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 (20001444143) 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, 112367575 + ... + 112367752.

It is an arithmetic number, because the mean of its divisors is an integer number (5056544880).

Almost surely, 2^20001444103 is an apocalyptic number.

20001444103 is a deficient number, since it is larger than the sum of its proper divisors (224735417).

20001444103 is an equidigital number, since it uses as much as digits as its factorization.

20001444103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224735416.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 20001444103 its reverse (30144410002), we get a palindrome (50145854105).

The spelling of 20001444103 in words is "twenty billion, one million, four hundred forty-four thousand, one hundred three".