243411111321 has 8 divisors (see below), whose sum is σ = 370912169664. Its totient is φ = 139092063600.

The previous prime is 243411111311. The next prime is 243411111343. The reversal of 243411111321 is 123111114342.

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

It is not a de Polignac number, because 243411111321 - 2⁹ = 243411110809 is a prime.

It is a super-2 number, since 2×243411111321² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243411111291 and 243411111300.

It is not an unprimeable number, because it can be changed into a prime (243411111311) 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, 5795502630 + ... + 5795502671.

It is an arithmetic number, because the mean of its divisors is an integer number (46364021208).

Almost surely, 2^243411111321 is an apocalyptic number.

243411111321 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

243411111321 is a deficient number, since it is larger than the sum of its proper divisors (127501058343).

243411111321 is a wasteful number, since it uses less digits than its factorization.

243411111321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11591005311.

The product of its digits is 576, while the sum is 24.

Adding to 243411111321 its reverse (123111114342), we get a palindrome (366522225663).

The spelling of 243411111321 in words is "two hundred forty-three billion, four hundred eleven million, one hundred eleven thousand, three hundred twenty-one".