243431413321 has 8 divisors (see below), whose sum is σ = 243606019104. Its totient is φ = 243256875840.

The previous prime is 243431413307. The next prime is 243431413333. The reversal of 243431413321 is 123314134342.

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 243431413321 - 2⁵ = 243431413289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243431416321) 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, 8592846 + ... + 8621128.

It is an arithmetic number, because the mean of its divisors is an integer number (30450752388).

Almost surely, 2^243431413321 is an apocalyptic number.

It is an amenable number.

243431413321 is a deficient number, since it is larger than the sum of its proper divisors (174605783).

243431413321 is a wasteful number, since it uses less digits than its factorization.

243431413321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34151.

The product of its digits is 20736, while the sum is 31.

Adding to 243431413321 its reverse (123314134342), we get a palindrome (366745547663).

The spelling of 243431413321 in words is "two hundred forty-three billion, four hundred thirty-one million, four hundred thirteen thousand, three hundred twenty-one".