121324312 has 8 divisors (see below), whose sum is σ = 227483100. Its totient is φ = 60662152.

The previous prime is 121324283. The next prime is 121324319. The reversal of 121324312 is 213423121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 121324312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121324319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7582762 + ... + 7582777.

Almost surely, 2^121324312 is an apocalyptic number.

It is an amenable number.

121324312 is a deficient number, since it is larger than the sum of its proper divisors (106158788).

121324312 is a wasteful number, since it uses less digits than its factorization.

121324312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15165545 (or 15165541 counting only the distinct ones).

The product of its digits is 288, while the sum is 19.

The square root of 121324312 is about 11014.7315900116. The cubic root of 121324312 is about 495.0502441942.

Adding to 121324312 its reverse (213423121), we get a palindrome (334747433).

The spelling of 121324312 in words is "one hundred twenty-one million, three hundred twenty-four thousand, three hundred twelve".