243234534031 has 4 divisors (see below), whose sum is σ = 244159380432. Its totient is φ = 242309687632.

The previous prime is 243234534019. The next prime is 243234534041. The reversal of 243234534031 is 130435432342.

243234534031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 243234534031 - 2¹³ = 243234525839 is a prime.

It is a super-2 number, since 2×243234534031² (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 (243234534041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 462422806 + ... + 462423331.

It is an arithmetic number, because the mean of its divisors is an integer number (61039845108).

Almost surely, 2^243234534031 is an apocalyptic number.

243234534031 is a deficient number, since it is larger than the sum of its proper divisors (924846401).

243234534031 is an equidigital number, since it uses as much as digits as its factorization.

243234534031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924846400.

The product of its (nonzero) digits is 103680, while the sum is 34.

Adding to 243234534031 its reverse (130435432342), we get a palindrome (373669966373).

The spelling of 243234534031 in words is "two hundred forty-three billion, two hundred thirty-four million, five hundred thirty-four thousand, thirty-one".