243045233331 has 4 divisors (see below), whose sum is σ = 324060311112. Its totient is φ = 162030155552.

The previous prime is 243045233303. The next prime is 243045233363. The reversal of 243045233331 is 133332540342.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 243045233331 - 2¹³ = 243045225139 is a prime.

It is a super-2 number, since 2×243045233331² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243045233292 and 243045233301.

It is not an unprimeable number, because it can be changed into a prime (243045233381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40507538886 + ... + 40507538891.

It is an arithmetic number, because the mean of its divisors is an integer number (81015077778).

Almost surely, 2^243045233331 is an apocalyptic number.

243045233331 is a deficient number, since it is larger than the sum of its proper divisors (81015077781).

243045233331 is an equidigital number, since it uses as much as digits as its factorization.

243045233331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81015077780.

The product of its (nonzero) digits is 77760, while the sum is 33.

Adding to 243045233331 its reverse (133332540342), we get a palindrome (376377773673).

The spelling of 243045233331 in words is "two hundred forty-three billion, forty-five million, two hundred thirty-three thousand, three hundred thirty-one".