121103132303 has 4 divisors (see below), whose sum is σ = 121105129728. Its totient is φ = 121101134880.

The previous prime is 121103132209. The next prime is 121103132323. The reversal of 121103132303 is 303231301121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 303231301121 = 7 ⋅43318757303.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121103132303 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 (121103132323) 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, 904826 + ... + 1030007.

It is an arithmetic number, because the mean of its divisors is an integer number (30276282432).

Almost surely, 2^121103132303 is an apocalyptic number.

121103132303 is a deficient number, since it is larger than the sum of its proper divisors (1997425).

121103132303 is an equidigital number, since it uses as much as digits as its factorization.

121103132303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1997424.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 121103132303 its reverse (303231301121), we get a palindrome (424334433424).

It can be divided in two parts, 12110 and 3132303, that added together give a palindrome (3144413).

The spelling of 121103132303 in words is "one hundred twenty-one billion, one hundred three million, one hundred thirty-two thousand, three hundred three".