121343242231312 has 20 divisors (see below), whose sum is σ = 237299751750096. Its totient is φ = 60104596618400.

The previous prime is 121343242231307. The next prime is 121343242231319. The reversal of 121343242231312 is 213132242343121.

It is not an unprimeable number, because it can be changed into a prime (121343242231319) 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, 35439029314 + ... + 35439032737.

Almost surely, 2^{121343242231312} is an apocalyptic number.

It is an amenable number.

121343242231312 is a deficient number, since it is larger than the sum of its proper divisors (115956509518784).

121343242231312 is a wasteful number, since it uses less digits than its factorization.

121343242231312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70878062166 (or 70878062160 counting only the distinct ones).

The product of its digits is 41472, while the sum is 34.

Adding to 121343242231312 its reverse (213132242343121), we get a palindrome (334475484574433).

The spelling of 121343242231312 in words is "one hundred twenty-one trillion, three hundred forty-three billion, two hundred forty-two million, two hundred thirty-one thousand, three hundred twelve".