121110011103 has 4 divisors (see below), whose sum is σ = 161480014808. Its totient is φ = 80740007400.

The previous prime is 121110011063. The next prime is 121110011107. The reversal of 121110011103 is 301110011121.

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

It is not a de Polignac number, because 121110011103 - 2⁹ = 121110010591 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 (121110011107) 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, 20185001848 + ... + 20185001853.

It is an arithmetic number, because the mean of its divisors is an integer number (40370003702).

Almost surely, 2^121110011103 is an apocalyptic number.

121110011103 is a deficient number, since it is larger than the sum of its proper divisors (40370003705).

121110011103 is an equidigital number, since it uses as much as digits as its factorization.

121110011103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40370003704.

The product of its (nonzero) digits is 6, while the sum is 12.

Adding to 121110011103 its reverse (301110011121), we get a palindrome (422220022224).

The spelling of 121110011103 in words is "one hundred twenty-one billion, one hundred ten million, eleven thousand, one hundred three".