20203121103167 has 2 divisors, whose sum is σ = 20203121103168. Its totient is φ = 20203121103166.

The previous prime is 20203121103127. The next prime is 20203121103317. The reversal of 20203121103167 is 76130112130202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20203121103167 - 2⁶ = 20203121103103 is a prime.

It is a super-2 number, since 2×20203121103167² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20203121103127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101560551583 + 10101560551584.

It is an arithmetic number, because the mean of its divisors is an integer number (10101560551584).

Almost surely, 2^{20203121103167} is an apocalyptic number.

20203121103167 is a deficient number, since it is larger than the sum of its proper divisors (1).

20203121103167 is an equidigital number, since it uses as much as digits as its factorization.

20203121103167 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 29.

Adding to 20203121103167 its reverse (76130112130202), we get a palindrome (96333233233369).

The spelling of 20203121103167 in words is "twenty trillion, two hundred three billion, one hundred twenty-one million, one hundred three thousand, one hundred sixty-seven".