121424201312 has 24 divisors (see below), whose sum is σ = 239096510856. Its totient is φ = 60701277952.

The previous prime is 121424201299. The next prime is 121424201317. The reversal of 121424201312 is 213102424121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121424201317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154358 + ... + 516405.

It is an arithmetic number, because the mean of its divisors is an integer number (9962354619).

Almost surely, 2^121424201312 is an apocalyptic number.

It is an amenable number.

121424201312 is a deficient number, since it is larger than the sum of its proper divisors (117672309544).

121424201312 is an equidigital number, since it uses as much as digits as its factorization.

121424201312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676430 (or 676422 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 121424201312 its reverse (213102424121), we get a palindrome (334526625433).

The spelling of 121424201312 in words is "one hundred twenty-one billion, four hundred twenty-four million, two hundred one thousand, three hundred twelve".