121132110103 has 4 divisors (see below), whose sum is σ = 121545530568. Its totient is φ = 120718689640.

The previous prime is 121132110091. The next prime is 121132110107. The reversal of 121132110103 is 301011231121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301011231121 = 977 ⋅308097473.

It is a cyclic number.

It is not a de Polignac number, because 121132110103 - 2²⁵ = 121098555671 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 (121132110107) 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, 206709793 + ... + 206710378.

It is an arithmetic number, because the mean of its divisors is an integer number (30386382642).

Almost surely, 2^121132110103 is an apocalyptic number.

121132110103 is a deficient number, since it is larger than the sum of its proper divisors (413420465).

121132110103 is an equidigital number, since it uses as much as digits as its factorization.

121132110103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413420464.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 121132110103 its reverse (301011231121), we get a palindrome (422143341224).

The spelling of 121132110103 in words is "one hundred twenty-one billion, one hundred thirty-two million, one hundred ten thousand, one hundred three".