201031120120243 has 16 divisors (see below), whose sum is σ = 230898328022016. Its totient is φ = 171453139925760.

The previous prime is 201031120120147. The next prime is 201031120120249. The reversal of 201031120120243 is 342021021130102.

201031120120243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-201031120120243 is a prime.

It is a super-2 number, since 2×201031120120243² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201031120120249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86713573 + ... + 89001718.

It is an arithmetic number, because the mean of its divisors is an integer number (14431145501376).

Almost surely, 2^{201031120120243} is an apocalyptic number.

201031120120243 is a deficient number, since it is larger than the sum of its proper divisors (29867207901773).

201031120120243 is a wasteful number, since it uses less digits than its factorization.

201031120120243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175716114.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 201031120120243 its reverse (342021021130102), we get a palindrome (543052141250345).

The spelling of 201031120120243 in words is "two hundred one trillion, thirty-one billion, one hundred twenty million, one hundred twenty thousand, two hundred forty-three".