10303601985 has 24 divisors (see below), whose sum is σ = 18636081984. Its totient is φ = 5256329760.

The previous prime is 10303601981. The next prime is 10303602053. The reversal of 10303601985 is 58910630301.

It is a happy number.

10303601985 is a `hidden beast` number, since 10 + 30 + 3 + 601 + 9 + 8 + 5 = 666.

It is not a de Polignac number, because 10303601985 - 2² = 10303601981 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10303601981) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4976551 + ... + 4978620.

It is an arithmetic number, because the mean of its divisors is an integer number (776503416).

Almost surely, 2^10303601985 is an apocalyptic number.

10303601985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10303601985 is a deficient number, since it is larger than the sum of its proper divisors (8332479999).

10303601985 is a wasteful number, since it uses less digits than its factorization.

10303601985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9955205 (or 9955202 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The spelling of 10303601985 in words is "ten billion, three hundred three million, six hundred one thousand, nine hundred eighty-five".