243031431334253 has 16 divisors (see below), whose sum is σ = 246280152640704. Its totient is φ = 239798961077760.

The previous prime is 243031431334247. The next prime is 243031431334273. The reversal of 243031431334253 is 352433134130342.

It is a cyclic number.

It is not a de Polignac number, because 243031431334253 - 2⁶ = 243031431334189 is a prime.

It is a super-2 number, since 2×243031431334253² (a number of 30 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 243031431334253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243031431334273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40283618 + ... + 45922028.

It is an arithmetic number, because the mean of its divisors is an integer number (15392509540044).

Almost surely, 2^{243031431334253} is an apocalyptic number.

It is an amenable number.

243031431334253 is a deficient number, since it is larger than the sum of its proper divisors (3248721306451).

243031431334253 is an equidigital number, since it uses as much as digits as its factorization.

243031431334253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5639852.

The product of its (nonzero) digits is 933120, while the sum is 41.

Adding to 243031431334253 its reverse (352433134130342), we get a palindrome (595464565464595).

The spelling of 243031431334253 in words is "two hundred forty-three trillion, thirty-one billion, four hundred thirty-one million, three hundred thirty-four thousand, two hundred fifty-three".