10243242661 has 8 divisors (see below), whose sum is σ = 10289575800. Its totient is φ = 10196971200.

The previous prime is 10243242643. The next prime is 10243242683. The reversal of 10243242661 is 16624234201.

10243242661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 321090561 + 9922152100 = 17919^2 + 99610^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10243242661 - 2²³ = 10234854053 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 (10243242631) 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 7 ways as a sum of consecutive naturals, for example, 335335 + ... + 364603.

It is an arithmetic number, because the mean of its divisors is an integer number (1286196975).

Almost surely, 2^10243242661 is an apocalyptic number.

It is an amenable number.

10243242661 is a deficient number, since it is larger than the sum of its proper divisors (46333139).

10243242661 is a wasteful number, since it uses less digits than its factorization.

10243242661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30839.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 10243242661 its reverse (16624234201), we get a palindrome (26867476862).

The spelling of 10243242661 in words is "ten billion, two hundred forty-three million, two hundred forty-two thousand, six hundred sixty-one".