20203021212287 has 2 divisors, whose sum is σ = 20203021212288. Its totient is φ = 20203021212286.

The previous prime is 20203021212203. The next prime is 20203021212289. The reversal of 20203021212287 is 78221212030202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20203021212287 - 2³⁴ = 20185841343103 is a prime.

It is a super-2 number, since 2×20203021212287² (a number of 27 digits) contains 22 as substring.

Together with 20203021212289, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20203021212289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101510606143 + 10101510606144.

It is an arithmetic number, because the mean of its divisors is an integer number (10101510606144).

Almost surely, 2^{20203021212287} is an apocalyptic number.

20203021212287 is a deficient number, since it is larger than the sum of its proper divisors (1).

20203021212287 is an equidigital number, since it uses as much as digits as its factorization.

20203021212287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 32.

Adding to 20203021212287 its reverse (78221212030202), we get a palindrome (98424233242489).

The spelling of 20203021212287 in words is "twenty trillion, two hundred three billion, twenty-one million, two hundred twelve thousand, two hundred eighty-seven".