12120102111103 has 4 divisors (see below), whose sum is σ = 13851545269840. Its totient is φ = 10388658952368.

The previous prime is 12120102111067. The next prime is 12120102111107. The reversal of 12120102111103 is 30111120102121.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12120102111103 - 2⁹ = 12120102110591 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 (12120102111107) 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, 865721579358 + ... + 865721579371.

It is an arithmetic number, because the mean of its divisors is an integer number (3462886317460).

Almost surely, 2^{12120102111103} is an apocalyptic number.

12120102111103 is a deficient number, since it is larger than the sum of its proper divisors (1731443158737).

12120102111103 is an equidigital number, since it uses as much as digits as its factorization.

12120102111103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1731443158736.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 12120102111103 its reverse (30111120102121), we get a palindrome (42231222213224).

The spelling of 12120102111103 in words is "twelve trillion, one hundred twenty billion, one hundred two million, one hundred eleven thousand, one hundred three".