201112121211103 has 4 divisors (see below), whose sum is σ = 201859749914760. Its totient is φ = 200364492507448.

The previous prime is 201112121211059. The next prime is 201112121211119. The reversal of 201112121211103 is 301112121211102.

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-201112121211103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201112121211163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 373814351425 + ... + 373814351962.

It is an arithmetic number, because the mean of its divisors is an integer number (50464937478690).

Almost surely, 2^{201112121211103} is an apocalyptic number.

201112121211103 is a deficient number, since it is larger than the sum of its proper divisors (747628703657).

201112121211103 is an equidigital number, since it uses as much as digits as its factorization.

201112121211103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747628703656.

The product of its (nonzero) digits is 48, while the sum is 19.

Adding to 201112121211103 its reverse (301112121211102), we get a palindrome (502224242422205).

Subtracting 201112121211103 from its reverse (301112121211102), we obtain a palindrome (99999999999999).

The spelling of 201112121211103 in words is "two hundred one trillion, one hundred twelve billion, one hundred twenty-one million, two hundred eleven thousand, one hundred three".