121300134203 has 4 divisors (see below), whose sum is σ = 122026482480. Its totient is φ = 120573785928.

The previous prime is 121300134167. The next prime is 121300134211. The reversal of 121300134203 is 302431003121.

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 121300134203 - 2²² = 121295939899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121300134233) 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, 363173888 + ... + 363174221.

It is an arithmetic number, because the mean of its divisors is an integer number (30506620620).

Almost surely, 2^121300134203 is an apocalyptic number.

121300134203 is a deficient number, since it is larger than the sum of its proper divisors (726348277).

121300134203 is an equidigital number, since it uses as much as digits as its factorization.

121300134203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726348276.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 121300134203 its reverse (302431003121), we get a palindrome (423731137324).

The spelling of 121300134203 in words is "one hundred twenty-one billion, three hundred million, one hundred thirty-four thousand, two hundred three".