20211012203203 has 2 divisors, whose sum is σ = 20211012203204. Its totient is φ = 20211012203202.

The previous prime is 20211012203147. The next prime is 20211012203251. The reversal of 20211012203203 is 30230221011202.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20211012203203 is a prime.

It is a super-3 number, since 3×20211012203203³ (a number of 41 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (20211012203303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10105506101601 + 10105506101602.

It is an arithmetic number, because the mean of its divisors is an integer number (10105506101602).

Almost surely, 2^{20211012203203} is an apocalyptic number.

20211012203203 is a deficient number, since it is larger than the sum of its proper divisors (1).

20211012203203 is an equidigital number, since it uses as much as digits as its factorization.

20211012203203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20211012203203 its reverse (30230221011202), we get a palindrome (50441233214405).

The spelling of 20211012203203 in words is "twenty trillion, two hundred eleven billion, twelve million, two hundred three thousand, two hundred three".