243241032451 has 4 divisors (see below), whose sum is σ = 243242156304. Its totient is φ = 243239908600.

The previous prime is 243241032421. The next prime is 243241032497. The reversal of 243241032451 is 154230142342.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243241032451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243241032421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122980 + ... + 708241.

It is an arithmetic number, because the mean of its divisors is an integer number (60810539076).

Almost surely, 2^243241032451 is an apocalyptic number.

243241032451 is a deficient number, since it is larger than the sum of its proper divisors (1123853).

243241032451 is an equidigital number, since it uses as much as digits as its factorization.

243241032451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1123852.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 243241032451 its reverse (154230142342), we get a palindrome (397471174793).

The spelling of 243241032451 in words is "two hundred forty-three billion, two hundred forty-one million, thirty-two thousand, four hundred fifty-one".