243454261121 has 8 divisors (see below), whose sum is σ = 247750476288. Its totient is φ = 239167890000.

The previous prime is 243454261103. The next prime is 243454261201. The reversal of 243454261121 is 121162454342.

It is a happy number.

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 243454261121 - 2²² = 243450066817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243454261321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2411105 + ... + 2510046.

It is an arithmetic number, because the mean of its divisors is an integer number (30968809536).

Almost surely, 2^243454261121 is an apocalyptic number.

It is an amenable number.

243454261121 is a deficient number, since it is larger than the sum of its proper divisors (4296215167).

243454261121 is an equidigital number, since it uses as much as digits as its factorization.

243454261121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4922023.

The product of its digits is 46080, while the sum is 35.

The spelling of 243454261121 in words is "two hundred forty-three billion, four hundred fifty-four million, two hundred sixty-one thousand, one hundred twenty-one".