243310252426 has 4 divisors (see below), whose sum is σ = 364965378642. Its totient is φ = 121655126212.

The previous prime is 243310252411. The next prime is 243310252463. The reversal of 243310252426 is 624252013342.

243310252426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 194071086225 + 49239166201 = 440535^2 + 221899^2 .

It is a junction number, because it is equal to n+sod(n) for n = 243310252391 and 243310252400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60827563105 + ... + 60827563108.

Almost surely, 2^243310252426 is an apocalyptic number.

243310252426 is a deficient number, since it is larger than the sum of its proper divisors (121655126216).

243310252426 is a wasteful number, since it uses less digits than its factorization.

243310252426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121655126215.

The product of its (nonzero) digits is 69120, while the sum is 34.

Adding to 243310252426 its reverse (624252013342), we get a palindrome (867562265768).

The spelling of 243310252426 in words is "two hundred forty-three billion, three hundred ten million, two hundred fifty-two thousand, four hundred twenty-six".