20103001003 has 2 divisors, whose sum is σ = 20103001004. Its totient is φ = 20103001002.

The previous prime is 20103000991. The next prime is 20103001021. The reversal of 20103001003 is 30010030102.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20103001003 is a prime.

It is not a weakly prime, because it can be changed into another prime (20103001043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10051500501 + 10051500502.

It is an arithmetic number, because the mean of its divisors is an integer number (10051500502).

Almost surely, 2^20103001003 is an apocalyptic number.

20103001003 is a deficient number, since it is larger than the sum of its proper divisors (1).

20103001003 is an equidigital number, since it uses as much as digits as its factorization.

20103001003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 10.

Adding to 20103001003 its reverse (30010030102), we get a palindrome (50113031105).

The spelling of 20103001003 in words is "twenty billion, one hundred three million, one thousand, three".