243411046321 has 4 divisors (see below), whose sum is σ = 243412034032. Its totient is φ = 243410058612.

The previous prime is 243411046271. The next prime is 243411046327. The reversal of 243411046321 is 123640114342.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 123640114342 = 2 ⋅61820057171.

It is a cyclic number.

It is not a de Polignac number, because 243411046321 - 2²¹ = 243408949169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243411046327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214006 + ... + 729808.

It is an arithmetic number, because the mean of its divisors is an integer number (60853008508).

Almost surely, 2^243411046321 is an apocalyptic number.

It is an amenable number.

243411046321 is a deficient number, since it is larger than the sum of its proper divisors (987711).

243411046321 is an equidigital number, since it uses as much as digits as its factorization.

243411046321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987710.

The product of its (nonzero) digits is 13824, while the sum is 31.

The spelling of 243411046321 in words is "two hundred forty-three billion, four hundred eleven million, forty-six thousand, three hundred twenty-one".