20440001003 has 2 divisors, whose sum is σ = 20440001004. Its totient is φ = 20440001002.

The previous prime is 20440000993. The next prime is 20440001047. The reversal of 20440001003 is 30010004402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20440001003 - 2¹⁴ = 20439984619 is a prime.

It is not a weakly prime, because it can be changed into another prime (20440001053) 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 as a sum of consecutive naturals, namely, 10220000501 + 10220000502.

It is an arithmetic number, because the mean of its divisors is an integer number (10220000502).

Almost surely, 2^20440001003 is an apocalyptic number.

20440001003 is a deficient number, since it is larger than the sum of its proper divisors (1).

20440001003 is an equidigital number, since it uses as much as digits as its factorization.

20440001003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 20440001003 its reverse (30010004402), we get a palindrome (50450005405).

The spelling of 20440001003 in words is "twenty billion, four hundred forty million, one thousand, three".