121102103 has 4 divisors (see below), whose sum is σ = 121151640. Its totient is φ = 121052568.

The previous prime is 121102049. The next prime is 121102129. The reversal of 121102103 is 301201121.

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 121102103 - 2⁶ = 121102039 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 (121102133) 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, 20900 + ... + 26057.

It is an arithmetic number, because the mean of its divisors is an integer number (30287910).

Almost surely, 2^121102103 is an apocalyptic number.

121102103 is a deficient number, since it is larger than the sum of its proper divisors (49537).

121102103 is an equidigital number, since it uses as much as digits as its factorization.

121102103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49536.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 121102103 is about 11004.6400668082. The cubic root of 121102103 is about 494.7478265248.

Adding to 121102103 its reverse (301201121), we get a palindrome (422303224).

The spelling of 121102103 in words is "one hundred twenty-one million, one hundred two thousand, one hundred three".