243010225531 has 4 divisors (see below), whose sum is σ = 243011236000. Its totient is φ = 243009215064.

The previous prime is 243010225487. The next prime is 243010225573. The reversal of 243010225531 is 135522010342.

243010225531 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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 243010225531 - 2²⁵ = 242976671099 is a prime.

It is a super-2 number, since 2×243010225531² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 243010225531.

It is not an unprimeable number, because it can be changed into a prime (243010225331) 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, 86590 + ... + 702508.

It is an arithmetic number, because the mean of its divisors is an integer number (60752809000).

Almost surely, 2^243010225531 is an apocalyptic number.

243010225531 is a deficient number, since it is larger than the sum of its proper divisors (1010469).

243010225531 is an equidigital number, since it uses as much as digits as its factorization.

243010225531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010468.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 243010225531 its reverse (135522010342), we get a palindrome (378532235873).

The spelling of 243010225531 in words is "two hundred forty-three billion, ten million, two hundred twenty-five thousand, five hundred thirty-one".