203101010117 has 2 divisors, whose sum is σ = 203101010118. Its totient is φ = 203101010116.

The previous prime is 203101010051. The next prime is 203101010129. The reversal of 203101010117 is 711010101302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 192081469441 + 11019540676 = 438271^2 + 104974^2 .

It is a cyclic number.

It is not a de Polignac number, because 203101010117 - 2¹² = 203101006021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 203101010095 and 203101010104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203101010197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101550505058 + 101550505059.

It is an arithmetic number, because the mean of its divisors is an integer number (101550505059).

Almost surely, 2^203101010117 is an apocalyptic number.

It is an amenable number.

203101010117 is a deficient number, since it is larger than the sum of its proper divisors (1).

203101010117 is an equidigital number, since it uses as much as digits as its factorization.

203101010117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42, while the sum is 17.

Adding to 203101010117 its reverse (711010101302), we get a palindrome (914111111419).

The spelling of 203101010117 in words is "two hundred three billion, one hundred one million, ten thousand, one hundred seventeen".