10303320987 has 32 divisors (see below), whose sum is σ = 15502556160. Its totient is φ = 6761905920.

The previous prime is 10303320967. The next prime is 10303321003. The reversal of 10303320987 is 78902330301.

It is a happy number.

It is not a de Polignac number, because 10303320987 - 2¹⁰ = 10303319963 is a prime.

It is a super-2 number, since 2×10303320987² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10303320947) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1389963 + ... + 1397355.

It is an arithmetic number, because the mean of its divisors is an integer number (484454880).

Almost surely, 2^10303320987 is an apocalyptic number.

10303320987 is a deficient number, since it is larger than the sum of its proper divisors (5199235173).

10303320987 is an equidigital number, since it uses as much as digits as its factorization.

10303320987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8200 (or 8194 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The spelling of 10303320987 in words is "ten billion, three hundred three million, three hundred twenty thousand, nine hundred eighty-seven".