121053103 has 4 divisors (see below), whose sum is σ = 121302160. Its totient is φ = 120804048.

The previous prime is 121053089. The next prime is 121053131. The reversal of 121053103 is 301350121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121053103 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 (121053133) 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, 123798 + ... + 124771.

It is an arithmetic number, because the mean of its divisors is an integer number (30325540).

Almost surely, 2^121053103 is an apocalyptic number.

121053103 is a deficient number, since it is larger than the sum of its proper divisors (249057).

121053103 is an equidigital number, since it uses as much as digits as its factorization.

121053103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249056.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 121053103 is about 11002.4135079536. The cubic root of 121053103 is about 494.6810896879.

The spelling of 121053103 in words is "one hundred twenty-one million, fifty-three thousand, one hundred three".