201231303230113 has 16 divisors (see below), whose sum is σ = 216983416078800. Its totient is φ = 185518232064000.

The previous prime is 201231303230059. The next prime is 201231303230117. The reversal of 201231303230113 is 311032303132102.

It can be written as a sum of positive squares in 8 ways, for example, as 6331498965009 + 194899804265104 = 2516247^2 + 13960652^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201231303230113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201231303230117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64921093 + ... + 67950061.

It is an arithmetic number, because the mean of its divisors is an integer number (13561463504925).

Almost surely, 2^{201231303230113} is an apocalyptic number.

It is an amenable number.

201231303230113 is a deficient number, since it is larger than the sum of its proper divisors (15752112848687).

201231303230113 is a wasteful number, since it uses less digits than its factorization.

201231303230113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3035412.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 201231303230113 its reverse (311032303132102), we get a palindrome (512263606362215).

The spelling of 201231303230113 in words is "two hundred one trillion, two hundred thirty-one billion, three hundred three million, two hundred thirty thousand, one hundred thirteen".