121101103 has 4 divisors (see below), whose sum is σ = 121124808. Its totient is φ = 121077400.

The previous prime is 121101089. The next prime is 121101107. The reversal of 121101103 is 301101121.

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 121101103 - 2⁹ = 121100591 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121101103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121101107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 676 + ... + 15577.

It is an arithmetic number, because the mean of its divisors is an integer number (30281202).

Almost surely, 2^121101103 is an apocalyptic number.

121101103 is a deficient number, since it is larger than the sum of its proper divisors (23705).

121101103 is an equidigital number, since it uses as much as digits as its factorization.

121101103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23704.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 121101103 is about 11004.5946313347. The cubic root of 121101103 is about 494.7464647285.

Adding to 121101103 its reverse (301101121), we get a palindrome (422202224).

The spelling of 121101103 in words is "one hundred twenty-one million, one hundred one thousand, one hundred three".