201112110031 has 4 divisors (see below), whose sum is σ = 229842411472. Its totient is φ = 172381808592.

The previous prime is 201112110011. The next prime is 201112110037. The reversal of 201112110031 is 130011211102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 201112110031 - 2⁹ = 201112109519 is a prime.

It is a super-2 number, since 2×201112110031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201112109993 and 201112110020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201112110037) 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 3 ways as a sum of consecutive naturals, for example, 14365150710 + ... + 14365150723.

It is an arithmetic number, because the mean of its divisors is an integer number (57460602868).

Almost surely, 2^201112110031 is an apocalyptic number.

201112110031 is a deficient number, since it is larger than the sum of its proper divisors (28730301441).

201112110031 is an equidigital number, since it uses as much as digits as its factorization.

201112110031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28730301440.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 201112110031 its reverse (130011211102), we get a palindrome (331123321133).

The spelling of 201112110031 in words is "two hundred one billion, one hundred twelve million, one hundred ten thousand, thirty-one".