201231032113 has 16 divisors (see below), whose sum is σ = 206018794240. Its totient is φ = 196506020736.

The previous prime is 201231032111. The next prime is 201231032141. The reversal of 201231032113 is 311230132102.

It is a cyclic number.

It is not a de Polignac number, because 201231032113 - 2¹ = 201231032111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201231032111) 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 in 15 ways as a sum of consecutive naturals, for example, 3696931 + ... + 3750967.

It is an arithmetic number, because the mean of its divisors is an integer number (12876174640).

Almost surely, 2^201231032113 is an apocalyptic number.

It is an amenable number.

201231032113 is a deficient number, since it is larger than the sum of its proper divisors (4787762127).

201231032113 is a wasteful number, since it uses less digits than its factorization.

201231032113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54616.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 201231032113 its reverse (311230132102), we get a palindrome (512461164215).

The spelling of 201231032113 in words is "two hundred one billion, two hundred thirty-one million, thirty-two thousand, one hundred thirteen".