121303021112 has 32 divisors (see below), whose sum is σ = 279930050400. Its totient is φ = 47988008064.

The previous prime is 121303021067. The next prime is 121303021129. The reversal of 121303021112 is 211120303121.

It is a congruent number.

It is an unprimeable number.

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, 83311787 + ... + 83313242.

It is an arithmetic number, because the mean of its divisors is an integer number (8747814075).

Almost surely, 2^121303021112 is an apocalyptic number.

It is an amenable number.

121303021112 is an abundant number, since it is smaller than the sum of its proper divisors (158627029288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121303021112 is a wasteful number, since it uses less digits than its factorization.

121303021112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166625055 (or 166625051 counting only the distinct ones).

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

Adding to 121303021112 its reverse (211120303121), we get a palindrome (332423324233).

The spelling of 121303021112 in words is "one hundred twenty-one billion, three hundred three million, twenty-one thousand, one hundred twelve".