20203021211201 has 2 divisors, whose sum is σ = 20203021211202. Its totient is φ = 20203021211200.

The previous prime is 20203021211173. The next prime is 20203021211209. The reversal of 20203021211201 is 10211212030202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20197393210801 + 5628000400 = 4494151^2 + 75020^2 .

It is a cyclic number.

It is not a de Polignac number, because 20203021211201 - 2¹⁸ = 20203020949057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20203021211201.

It is not a weakly prime, because it can be changed into another prime (20203021211209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101510605600 + 10101510605601.

It is an arithmetic number, because the mean of its divisors is an integer number (10101510605601).

Almost surely, 2^{20203021211201} is an apocalyptic number.

It is an amenable number.

20203021211201 is a deficient number, since it is larger than the sum of its proper divisors (1).

20203021211201 is an equidigital number, since it uses as much as digits as its factorization.

20203021211201 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 17.

Adding to 20203021211201 its reverse (10211212030202), we get a palindrome (30414233241403).

The spelling of 20203021211201 in words is "twenty trillion, two hundred three billion, twenty-one million, two hundred eleven thousand, two hundred one".