10320999 has 12 divisors (see below), whose sum is σ = 14902056. Its totient is φ = 6351072.

The previous prime is 10320983. The next prime is 10321021. The reversal of 10320999 is 99902301.

It is not a de Polignac number, because 10320999 - 2⁴ = 10320983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10320949) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9672 + ... + 10685.

It is an arithmetic number, because the mean of its divisors is an integer number (1241838).

Almost surely, 2^10320999 is an apocalyptic number.

10320999 is a deficient number, since it is larger than the sum of its proper divisors (4581057).

10320999 is a wasteful number, since it uses less digits than its factorization.

10320999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20386 (or 20373 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 33.

The square root of 10320999 is about 3212.6311646375. The cubic root of 10320999 is about 217.7244716490.

The spelling of 10320999 in words is "ten million, three hundred twenty thousand, nine hundred ninety-nine".