121130103 has 4 divisors (see below), whose sum is σ = 161506808. Its totient is φ = 80753400.

The previous prime is 121130101. The next prime is 121130137. The reversal of 121130103 is 301031121.

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

It is not a de Polignac number, because 121130103 - 2¹ = 121130101 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 (121130101) 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, 20188348 + ... + 20188353.

It is an arithmetic number, because the mean of its divisors is an integer number (40376702).

Almost surely, 2^121130103 is an apocalyptic number.

121130103 is a deficient number, since it is larger than the sum of its proper divisors (40376705).

121130103 is an equidigital number, since it uses as much as digits as its factorization.

121130103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40376704.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 121130103 is about 11005.9121839128. The cubic root of 121130103 is about 494.7859537780.

Adding to 121130103 its reverse (301031121), we get a palindrome (422161224).

The spelling of 121130103 in words is "one hundred twenty-one million, one hundred thirty thousand, one hundred three".