243454032121 has 8 divisors (see below), whose sum is σ = 244569124800. Its totient is φ = 242339313648.

The previous prime is 243454032119. The next prime is 243454032131. The reversal of 243454032121 is 121230454342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 243454032121 - 2¹ = 243454032119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243454032131) 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, 1254955 + ... + 1435903.

It is an arithmetic number, because the mean of its divisors is an integer number (30571140600).

Almost surely, 2^243454032121 is an apocalyptic number.

It is an amenable number.

243454032121 is a deficient number, since it is larger than the sum of its proper divisors (1115092679).

243454032121 is a wasteful number, since it uses less digits than its factorization.

243454032121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187103.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 243454032121 its reverse (121230454342), we get a palindrome (364684486463).

The spelling of 243454032121 in words is "two hundred forty-three billion, four hundred fifty-four million, thirty-two thousand, one hundred twenty-one".