243041334153 has 4 divisors (see below), whose sum is σ = 324055112208. Its totient is φ = 162027556100.

The previous prime is 243041334149. The next prime is 243041334157. The reversal of 243041334153 is 351433140342.

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 an interprime number because it is at equal distance from previous prime (243041334149) and next prime (243041334157).

It is a cyclic number.

It is not a de Polignac number, because 243041334153 - 2² = 243041334149 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243041334157) 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, 40506889023 + ... + 40506889028.

It is an arithmetic number, because the mean of its divisors is an integer number (81013778052).

Almost surely, 2^243041334153 is an apocalyptic number.

It is an amenable number.

243041334153 is a deficient number, since it is larger than the sum of its proper divisors (81013778055).

243041334153 is an equidigital number, since it uses as much as digits as its factorization.

243041334153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81013778054.

The product of its (nonzero) digits is 51840, while the sum is 33.

Adding to 243041334153 its reverse (351433140342), we get a palindrome (594474474495).

The spelling of 243041334153 in words is "two hundred forty-three billion, forty-one million, three hundred thirty-four thousand, one hundred fifty-three".