201112010023 has 4 divisors (see below), whose sum is σ = 201115830888. Its totient is φ = 201108189160.

The previous prime is 201112010009. The next prime is 201112010041. The reversal of 201112010023 is 320010211102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201112010023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201112009985 and 201112010012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201112010053) 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, 1830361 + ... + 1937122.

It is an arithmetic number, because the mean of its divisors is an integer number (50278957722).

Almost surely, 2^201112010023 is an apocalyptic number.

201112010023 is a deficient number, since it is larger than the sum of its proper divisors (3820865).

201112010023 is an equidigital number, since it uses as much as digits as its factorization.

201112010023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3820864.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 201112010023 its reverse (320010211102), we get a palindrome (521122221125).

The spelling of 201112010023 in words is "two hundred one billion, one hundred twelve million, ten thousand, twenty-three".