201112111201023 has 80 divisors (see below), whose sum is σ = 330264318954240. Its totient is φ = 120946819593600.

The previous prime is 201112111201013. The next prime is 201112111201033. The reversal of 201112111201023 is 320102111211102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (201112111201013) and next prime (201112111201033).

It is not a de Polignac number, because 201112111201023 - 2¹⁷ = 201112111069951 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201112111200987 and 201112111201005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201112111201013) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1812271483 + ... + 1812382451.

It is an arithmetic number, because the mean of its divisors is an integer number (4128303986928).

Almost surely, 2^{201112111201023} is an apocalyptic number.

201112111201023 is a deficient number, since it is larger than the sum of its proper divisors (129152207753217).

201112111201023 is a wasteful number, since it uses less digits than its factorization.

201112111201023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126650 (or 126641 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 201112111201023 its reverse (320102111211102), we get a palindrome (521214222412125).

The spelling of 201112111201023 in words is "two hundred one trillion, one hundred twelve billion, one hundred eleven million, two hundred one thousand, twenty-three".