121323013112 has 64 divisors (see below), whose sum is σ = 260685734400. Its totient is φ = 51854221440.

The previous prime is 121323013111. The next prime is 121323013157. The reversal of 121323013112 is 211310323121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121323013111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51868439 + ... + 51870777.

It is an arithmetic number, because the mean of its divisors is an integer number (4073214600).

Almost surely, 2^121323013112 is an apocalyptic number.

It is an amenable number.

121323013112 is an abundant number, since it is smaller than the sum of its proper divisors (139362721288).

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

121323013112 is a wasteful number, since it uses less digits than its factorization.

121323013112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4476 (or 4472 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 121323013112 its reverse (211310323121), we get a palindrome (332633336233).

The spelling of 121323013112 in words is "one hundred twenty-one billion, three hundred twenty-three million, thirteen thousand, one hundred twelve".