243041515413 has 4 divisors (see below), whose sum is σ = 324055353888. Its totient is φ = 162027676940.

The previous prime is 243041515411. The next prime is 243041515417. The reversal of 243041515413 is 314515140342.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 243041515413 - 2¹ = 243041515411 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243041515411) 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, 40506919233 + ... + 40506919238.

It is an arithmetic number, because the mean of its divisors is an integer number (81013838472).

Almost surely, 2^243041515413 is an apocalyptic number.

It is an amenable number.

243041515413 is a deficient number, since it is larger than the sum of its proper divisors (81013838475).

243041515413 is an equidigital number, since it uses as much as digits as its factorization.

243041515413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81013838474.

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 243041515413 its reverse (314515140342), we get a palindrome (557556655755).

The spelling of 243041515413 in words is "two hundred forty-three billion, forty-one million, five hundred fifteen thousand, four hundred thirteen".