243133310423 has 4 divisors (see below), whose sum is σ = 243146194200. Its totient is φ = 243120426648.

The previous prime is 243133310411. The next prime is 243133310447. The reversal of 243133310423 is 324013331342.

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 243133310423 - 2⁶ = 243133310359 is a prime.

It is a super-2 number, since 2×243133310423² (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 (243133310023) 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, 6413540 + ... + 6451337.

It is an arithmetic number, because the mean of its divisors is an integer number (60786548550).

Almost surely, 2^243133310423 is an apocalyptic number.

243133310423 is a deficient number, since it is larger than the sum of its proper divisors (12883777).

243133310423 is a wasteful number, since it uses less digits than its factorization.

243133310423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12883776.

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 243133310423 its reverse (324013331342), we get a palindrome (567146641765).

The spelling of 243133310423 in words is "two hundred forty-three billion, one hundred thirty-three million, three hundred ten thousand, four hundred twenty-three".