121544343 has 12 divisors (see below), whose sum is σ = 177970000. Its totient is φ = 79919136.

The previous prime is 121544341. The next prime is 121544347. The reversal of 121544343 is 343445121.

It is a happy number.

121544343 is a `hidden beast` number, since 1 + 215 + 443 + 4 + 3 = 666.

It is not a de Polignac number, because 121544343 - 2¹ = 121544341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121544341) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91843 + ... + 93156.

Almost surely, 2^121544343 is an apocalyptic number.

121544343 is a deficient number, since it is larger than the sum of its proper divisors (56425657).

121544343 is a wasteful number, since it uses less digits than its factorization.

121544343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185078 (or 185075 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 121544343 is about 11024.7150983597. The cubic root of 121544343 is about 495.3493340631.

Adding to 121544343 its reverse (343445121), we get a palindrome (464989464).

The spelling of 121544343 in words is "one hundred twenty-one million, five hundred forty-four thousand, three hundred forty-three".