121332204243 has 6 divisors (see below), whose sum is σ = 175257628364. Its totient is φ = 80888136156.

The previous prime is 121332204229. The next prime is 121332204251. The reversal of 121332204243 is 342402233121.

121332204243 is a `hidden beast` number, since 1 + 2 + 13 + 3 + 220 + 424 + 3 = 666.

It is not a de Polignac number, because 121332204243 - 2¹² = 121332200147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121332204283) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6740678005 + ... + 6740678022.

Almost surely, 2^121332204243 is an apocalyptic number.

121332204243 is a deficient number, since it is larger than the sum of its proper divisors (53925424121).

121332204243 is a wasteful number, since it uses less digits than its factorization.

121332204243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13481356033 (or 13481356030 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 121332204243 its reverse (342402233121), we get a palindrome (463734437364).

The spelling of 121332204243 in words is "one hundred twenty-one billion, three hundred thirty-two million, two hundred four thousand, two hundred forty-three".