121300103 has 4 divisors (see below), whose sum is σ = 121445520. Its totient is φ = 121154688.

The previous prime is 121300079. The next prime is 121300129. The reversal of 121300103 is 301003121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301003121 = 479 ⋅628399.

It is a cyclic number.

It is not a de Polignac number, because 121300103 - 2⁸ = 121299847 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 (121300903) 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, 71450 + ... + 73127.

It is an arithmetic number, because the mean of its divisors is an integer number (30361380).

Almost surely, 2^121300103 is an apocalyptic number.

121300103 is a deficient number, since it is larger than the sum of its proper divisors (145417).

121300103 is an equidigital number, since it uses as much as digits as its factorization.

121300103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145416.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 121300103 is about 11013.6325978307. The cubic root of 121300103 is about 495.0173146343.

Adding to 121300103 its reverse (301003121), we get a palindrome (422303224).

The spelling of 121300103 in words is "one hundred twenty-one million, three hundred thousand, one hundred three".