10320403500 has 144 divisors (see below), whose sum is σ = 35517369888. Its totient is φ = 2501904000.

The previous prime is 10320403481. The next prime is 10320403547. The reversal of 10320403500 is 530402301.

10320403500 is a `hidden beast` number, since 103 + 20 + 40 + 3 + 500 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 54747 + ... + 153746.

It is an arithmetic number, because the mean of its divisors is an integer number (246648402).

Almost surely, 2^10320403500 is an apocalyptic number.

10320403500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10320403500 is an abundant number, since it is smaller than the sum of its proper divisors (25196966388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10320403500 is a wasteful number, since it uses less digits than its factorization.

10320403500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208529 (or 208514 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

Adding to 10320403500 its reverse (530402301), we get a palindrome (10850805801).

The spelling of 10320403500 in words is "ten billion, three hundred twenty million, four hundred three thousand, five hundred".