203311012011113 has 2 divisors, whose sum is σ = 203311012011114. Its totient is φ = 203311012011112.

The previous prime is 203311012011071. The next prime is 203311012011131. The reversal of 203311012011113 is 311110210113302.

Together with next prime (203311012011131) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 160752780884224 + 42558231126889 = 12678832^2 + 6523667^2 .

It is a cyclic number.

It is not a de Polignac number, because 203311012011113 - 2⁸ = 203311012010857 is a prime.

It is not a weakly prime, because it can be changed into another prime (203311012011193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101655506005556 + 101655506005557.

It is an arithmetic number, because the mean of its divisors is an integer number (101655506005557).

Almost surely, 2^{203311012011113} is an apocalyptic number.

It is an amenable number.

203311012011113 is a deficient number, since it is larger than the sum of its proper divisors (1).

203311012011113 is an equidigital number, since it uses as much as digits as its factorization.

203311012011113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 203311012011113 its reverse (311110210113302), we get a palindrome (514421222124415).

The spelling of 203311012011113 in words is "two hundred three trillion, three hundred eleven billion, twelve million, eleven thousand, one hundred thirteen".