121103212013 has 8 divisors (see below), whose sum is σ = 139024316928. Its totient is φ = 103337268624.

The previous prime is 121103212007. The next prime is 121103212051. The reversal of 121103212013 is 310212301121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121103212013 - 2⁶ = 121103211949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121103211982 and 121103212000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121103212063) 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 7 ways as a sum of consecutive naturals, for example, 38788706 + ... + 38791827.

It is an arithmetic number, because the mean of its divisors is an integer number (17378039616).

Almost surely, 2^121103212013 is an apocalyptic number.

It is an amenable number.

121103212013 is a deficient number, since it is larger than the sum of its proper divisors (17921104915).

121103212013 is an equidigital number, since it uses as much as digits as its factorization.

121103212013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77580763.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 121103212013 its reverse (310212301121), we get a palindrome (431315513134).

The spelling of 121103212013 in words is "one hundred twenty-one billion, one hundred three million, two hundred twelve thousand, thirteen".