243310324431 has 8 divisors (see below), whose sum is σ = 341488174720. Its totient is φ = 153669678552.

The previous prime is 243310324427. The next prime is 243310324441. The reversal of 243310324431 is 134423013342.

It is a happy number.

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

It is not a de Polignac number, because 243310324431 - 2² = 243310324427 is a prime.

It is a super-2 number, since 2×243310324431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243310324441) 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, 2134301035 + ... + 2134301148.

It is an arithmetic number, because the mean of its divisors is an integer number (42686021840).

Almost surely, 2^243310324431 is an apocalyptic number.

243310324431 is a deficient number, since it is larger than the sum of its proper divisors (98177850289).

243310324431 is a wasteful number, since it uses less digits than its factorization.

243310324431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4268602205.

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 243310324431 its reverse (134423013342), we get a palindrome (377733337773).

The spelling of 243310324431 in words is "two hundred forty-three billion, three hundred ten million, three hundred twenty-four thousand, four hundred thirty-one".