243105413351 has 4 divisors (see below), whose sum is σ = 243110524272. Its totient is φ = 243100302432.

The previous prime is 243105413339. The next prime is 243105413359. The reversal of 243105413351 is 153314501342.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 153314501342 = 2 ⋅76657250671.

It is a cyclic number.

It is not a de Polignac number, because 243105413351 - 2¹⁰ = 243105412327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243105413359) 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, 2483435 + ... + 2579468.

It is an arithmetic number, because the mean of its divisors is an integer number (60777631068).

Almost surely, 2^243105413351 is an apocalyptic number.

243105413351 is a deficient number, since it is larger than the sum of its proper divisors (5110921).

243105413351 is an equidigital number, since it uses as much as digits as its factorization.

243105413351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5110920.

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 243105413351 its reverse (153314501342), we get a palindrome (396419914693).

The spelling of 243105413351 in words is "two hundred forty-three billion, one hundred five million, four hundred thirteen thousand, three hundred fifty-one".