10303305661 has 8 divisors (see below), whose sum is σ = 11256434784. Its totient is φ = 9352920720.

The previous prime is 10303305659. The next prime is 10303305671. The reversal of 10303305661 is 16650330301.

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

It is not a de Polignac number, because 10303305661 - 2¹ = 10303305659 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 (10303305601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 678186 + ... + 693211.

It is an arithmetic number, because the mean of its divisors is an integer number (1407054348).

Almost surely, 2^10303305661 is an apocalyptic number.

10303305661 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10303305661 is a deficient number, since it is larger than the sum of its proper divisors (953129123).

10303305661 is a wasteful number, since it uses less digits than its factorization.

10303305661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1372091.

The product of its (nonzero) digits is 4860, while the sum is 28.

Adding to 10303305661 its reverse (16650330301), we get a palindrome (26953635962).

The spelling of 10303305661 in words is "ten billion, three hundred three million, three hundred five thousand, six hundred sixty-one".