243407149121 has 8 divisors (see below), whose sum is σ = 253995339840. Its totient is φ = 232819397712.

The previous prime is 243407149109. The next prime is 243407149123. The reversal of 243407149121 is 121941704342.

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 243407149121 - 2³⁴ = 226227279937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243407149123) 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, 1567826 + ... + 1716068.

It is an arithmetic number, because the mean of its divisors is an integer number (31749417480).

Almost surely, 2^243407149121 is an apocalyptic number.

It is an amenable number.

243407149121 is a deficient number, since it is larger than the sum of its proper divisors (10588190719).

243407149121 is a wasteful number, since it uses less digits than its factorization.

243407149121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219655.

The product of its (nonzero) digits is 48384, while the sum is 38.

The spelling of 243407149121 in words is "two hundred forty-three billion, four hundred seven million, one hundred forty-nine thousand, one hundred twenty-one".