201020012003 has 2 divisors, whose sum is σ = 201020012004. Its totient is φ = 201020012002.

The previous prime is 201020011999. The next prime is 201020012023. The reversal of 201020012003 is 300210020102.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201020012003 - 2² = 201020011999 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (201020012023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100510006001 + 100510006002.

It is an arithmetic number, because the mean of its divisors is an integer number (100510006002).

Almost surely, 2^201020012003 is an apocalyptic number.

201020012003 is a deficient number, since it is larger than the sum of its proper divisors (1).

201020012003 is an equidigital number, since it uses as much as digits as its factorization.

201020012003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 201020012003 its reverse (300210020102), we get a palindrome (501230032105).

The spelling of 201020012003 in words is "two hundred one billion, twenty million, twelve thousand, three".