20203101631103 has 2 divisors, whose sum is σ = 20203101631104. Its totient is φ = 20203101631102.

The previous prime is 20203101631091. The next prime is 20203101631121. The reversal of 20203101631103 is 30113610130202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20203101631103 - 2¹⁸ = 20203101368959 is a prime.

It is a super-3 number, since 3×20203101631103³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20203101631403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101550815551 + 10101550815552.

It is an arithmetic number, because the mean of its divisors is an integer number (10101550815552).

Almost surely, 2^{20203101631103} is an apocalyptic number.

20203101631103 is a deficient number, since it is larger than the sum of its proper divisors (1).

20203101631103 is an equidigital number, since it uses as much as digits as its factorization.

20203101631103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 20203101631103 its reverse (30113610130202), we get a palindrome (50316711761305).

The spelling of 20203101631103 in words is "twenty trillion, two hundred three billion, one hundred one million, six hundred thirty-one thousand, one hundred three".