203101238113 has 2 divisors, whose sum is σ = 203101238114. Its totient is φ = 203101238112.

The previous prime is 203101238111. The next prime is 203101238117. The reversal of 203101238113 is 311832101302.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117341872704 + 85759365409 = 342552^2 + 292847^2 .

It is a cyclic number.

It is not a de Polignac number, because 203101238113 - 2¹ = 203101238111 is a prime.

It is a super-2 number, since 2×203101238113² (a number of 23 digits) contains 22 as substring.

Together with 203101238111, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (203101238111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101550619056 + 101550619057.

It is an arithmetic number, because the mean of its divisors is an integer number (101550619057).

Almost surely, 2^203101238113 is an apocalyptic number.

It is an amenable number.

203101238113 is a deficient number, since it is larger than the sum of its proper divisors (1).

203101238113 is an equidigital number, since it uses as much as digits as its factorization.

203101238113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 203101238113 its reverse (311832101302), we get a palindrome (514933339415).

The spelling of 203101238113 in words is "two hundred three billion, one hundred one million, two hundred thirty-eight thousand, one hundred thirteen".