10321003530 has 128 divisors (see below), whose sum is σ = 27991180800. Its totient is φ = 2705674752.

The previous prime is 10321003529. The next prime is 10321003541. The reversal of 10321003530 is 3530012301.

10321003530 is a `hidden beast` number, since 1 + 0 + 32 + 100 + 3 + 530 = 666.

It is a super-2 number, since 2×10321003530² (a number of 21 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7824211 + ... + 7825529.

It is an arithmetic number, because the mean of its divisors is an integer number (218681100).

Almost surely, 2^10321003530 is an apocalyptic number.

10321003530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 10321003530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13995590400).

10321003530 is an abundant number, since it is smaller than the sum of its proper divisors (17670177270).

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

10321003530 is a wasteful number, since it uses less digits than its factorization.

10321003530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1805 (or 1799 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

Adding to 10321003530 its reverse (3530012301), we get a palindrome (13851015831).

The spelling of 10321003530 in words is "ten billion, three hundred twenty-one million, three thousand, five hundred thirty".