121344312 has 32 divisors (see below), whose sum is σ = 311562000. Its totient is φ = 39354624.

The previous prime is 121344281. The next prime is 121344319. The reversal of 121344312 is 213443121.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121344319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67437 + ... + 69212.

Almost surely, 2^121344312 is an apocalyptic number.

121344312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121344312 is an abundant number, since it is smaller than the sum of its proper divisors (190217688).

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

121344312 is a wasteful number, since it uses less digits than its factorization.

121344312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136695 (or 136691 counting only the distinct ones).

The product of its digits is 576, while the sum is 21.

The square root of 121344312 is about 11015.6394276501. The cubic root of 121344312 is about 495.0774452850.

Adding to 121344312 its reverse (213443121), we get a palindrome (334787433).

The spelling of 121344312 in words is "one hundred twenty-one million, three hundred forty-four thousand, three hundred twelve".