20201020212003 has 16 divisors (see below), whose sum is σ = 27576300867456. Its totient is φ = 13146889069440.

The previous prime is 20201020211987. The next prime is 20201020212017. The reversal of 20201020212003 is 30021202010202.

It is a happy number.

It is not a de Polignac number, because 20201020212003 - 2⁴ = 20201020211987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20201020212073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43001350 + ... + 43468587.

It is an arithmetic number, because the mean of its divisors is an integer number (1723518804216).

Almost surely, 2^{20201020212003} is an apocalyptic number.

20201020212003 is a deficient number, since it is larger than the sum of its proper divisors (7375280655453).

20201020212003 is a wasteful number, since it uses less digits than its factorization.

20201020212003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86471794.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 20201020212003 its reverse (30021202010202), we get a palindrome (50222222222205).

The spelling of 20201020212003 in words is "twenty trillion, two hundred one billion, twenty million, two hundred twelve thousand, three".