9990330131 has 4 divisors (see below), whose sum is σ = 10516137000. Its totient is φ = 9464523264.

The previous prime is 9990330127. The next prime is 9990330173. The reversal of 9990330131 is 1310330999.

9990330131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9990330131 - 2² = 9990330127 is a prime.

It is a super-2 number, since 2×9990330131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9990330121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262903406 + ... + 262903443.

It is an arithmetic number, because the mean of its divisors is an integer number (2629034250).

Almost surely, 2^9990330131 is an apocalyptic number.

9990330131 is a deficient number, since it is larger than the sum of its proper divisors (525806869).

9990330131 is a wasteful number, since it uses less digits than its factorization.

9990330131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525806868.

The product of its (nonzero) digits is 19683, while the sum is 38.

The square root of 9990330131 is about 99951.6389610496. The cubic root of 9990330131 is about 2153.7400293671.

The spelling of 9990330131 in words is "nine billion, nine hundred ninety million, three hundred thirty thousand, one hundred thirty-one".