12111210202103 has 16 divisors (see below), whose sum is σ = 12755613628800. Its totient is φ = 11486800723200.

The previous prime is 12111210202019. The next prime is 12111210202111. The reversal of 12111210202103 is 30120201211121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12111210202103 - 2¹² = 12111210198007 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 (12111210204103) 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, 20803508 + ... + 21377753.

It is an arithmetic number, because the mean of its divisors is an integer number (797225851800).

Almost surely, 2^{12111210202103} is an apocalyptic number.

12111210202103 is a deficient number, since it is larger than the sum of its proper divisors (644403426697).

12111210202103 is a wasteful number, since it uses less digits than its factorization.

12111210202103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42181498.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 12111210202103 its reverse (30120201211121), we get a palindrome (42231411413224).

The spelling of 12111210202103 in words is "twelve trillion, one hundred eleven billion, two hundred ten million, two hundred two thousand, one hundred three".