121103103321 has 10 divisors (see below), whose sum is σ = 180907105082. Its totient is φ = 80735402160.

The previous prime is 121103103311. The next prime is 121103103353. The reversal of 121103103321 is 123301301121.

121103103321 is a `hidden beast` number, since 1 + 21 + 1 + 0 + 310 + 332 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 111014909721 + 10088193600 = 333189^2 + 100440^2 .

It is not a de Polignac number, because 121103103321 - 2⁶ = 121103103257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 121103103294 and 121103103303.

It is not an unprimeable number, because it can be changed into a prime (121103103301) 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 9 ways as a sum of consecutive naturals, for example, 747549940 + ... + 747550101.

Almost surely, 2^121103103321 is an apocalyptic number.

It is an amenable number.

121103103321 is a deficient number, since it is larger than the sum of its proper divisors (59804001761).

121103103321 is an equidigital number, since it uses as much as digits as its factorization.

121103103321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1495100053 (or 1495100044 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 121103103321 its reverse (123301301121), we get a palindrome (244404404442).

The spelling of 121103103321 in words is "one hundred twenty-one billion, one hundred three million, one hundred three thousand, three hundred twenty-one".