243054040031 has 16 divisors (see below), whose sum is σ = 266640076800. Its totient is φ = 219717261600.

The previous prime is 243054040027. The next prime is 243054040049. The reversal of 243054040031 is 130040450342.

It is a cyclic number.

It is not a de Polignac number, because 243054040031 - 2² = 243054040027 is a prime.

It is a super-2 number, since 2×243054040031² (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 (243054040001) 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, 5838950 + ... + 5880428.

It is an arithmetic number, because the mean of its divisors is an integer number (16665004800).

Almost surely, 2^243054040031 is an apocalyptic number.

243054040031 is a deficient number, since it is larger than the sum of its proper divisors (23586036769).

243054040031 is a wasteful number, since it uses less digits than its factorization.

243054040031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44470.

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 243054040031 its reverse (130040450342), we get a palindrome (373094490373).

The spelling of 243054040031 in words is "two hundred forty-three billion, fifty-four million, forty thousand, thirty-one".