10203321020117 has 2 divisors, whose sum is σ = 10203321020118. Its totient is φ = 10203321020116.

The previous prime is 10203321020071. The next prime is 10203321020171. The reversal of 10203321020117 is 71102012330201.

Together with next prime (10203321020171) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10172789049361 + 30531970756 = 3189481^2 + 174734^2 .

It is a cyclic number.

It is not a de Polignac number, because 10203321020117 - 2⁸ = 10203321019861 is a prime.

It is a super-2 number, since 2×10203321020117² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10203321020092 and 10203321020101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10203321020197) 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, 5101660510058 + 5101660510059.

It is an arithmetic number, because the mean of its divisors is an integer number (5101660510059).

Almost surely, 2^{10203321020117} is an apocalyptic number.

It is an amenable number.

10203321020117 is a deficient number, since it is larger than the sum of its proper divisors (1).

10203321020117 is an equidigital number, since it uses as much as digits as its factorization.

10203321020117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 23.

Adding to 10203321020117 its reverse (71102012330201), we get a palindrome (81305333350318).

The spelling of 10203321020117 in words is "ten trillion, two hundred three billion, three hundred twenty-one million, twenty thousand, one hundred seventeen".