9930521103 has 32 divisors (see below), whose sum is σ = 13579315200. Its totient is φ = 6453225696.

The previous prime is 9930521077. The next prime is 9930521137. The reversal of 9930521103 is 3011250399.

It is a Cunningham number, because it is equal to 99652²-1.

It is not a de Polignac number, because 9930521103 - 2²⁹ = 9393650191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9930521303) 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, 17638300 + ... + 17638862.

It is an arithmetic number, because the mean of its divisors is an integer number (424353600).

Almost surely, 2^9930521103 is an apocalyptic number.

9930521103 is a deficient number, since it is larger than the sum of its proper divisors (3648794097).

9930521103 is a wasteful number, since it uses less digits than its factorization.

9930521103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1291.

The product of its (nonzero) digits is 7290, while the sum is 33.

The square root of 9930521103 is about 99651.9999949825. Note that the first 5 decimals coincide. The cubic root of 9930521103 is about 2149.4334979786.

The spelling of 9930521103 in words is "nine billion, nine hundred thirty million, five hundred twenty-one thousand, one hundred three".