9113130021 has 4 divisors (see below), whose sum is σ = 12150840032. Its totient is φ = 6075420012.

The previous prime is 9113129957. The next prime is 9113130053. The reversal of 9113130021 is 1200313119.

9113130021 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 9113130021 - 2⁶ = 9113129957 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9113130021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9113130121) 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, 1518855001 + ... + 1518855006.

It is an arithmetic number, because the mean of its divisors is an integer number (3037710008).

Almost surely, 2^9113130021 is an apocalyptic number.

It is an amenable number.

9113130021 is a deficient number, since it is larger than the sum of its proper divisors (3037710011).

9113130021 is a wasteful number, since it uses less digits than its factorization.

9113130021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3037710010.

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 9113130021 is about 95462.7153447879. The cubic root of 9113130021 is about 2088.7631106162.

The spelling of 9113130021 in words is "nine billion, one hundred thirteen million, one hundred thirty thousand, twenty-one".