9121300073 has 4 divisors (see below), whose sum is σ = 9121491540. Its totient is φ = 9121108608.

The previous prime is 9121300061. The next prime is 9121300079. The reversal of 9121300073 is 3700031219.

9121300073 is digitally balanced in base 3, 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 can be written as a sum of positive squares in 2 ways, for example, as 5738365504 + 3382934569 = 75752^2 + 58163^2 .

It is a cyclic number.

It is not a de Polignac number, because 9121300073 - 2⁶ = 9121300009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9121300079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37973 + ... + 140301.

It is an arithmetic number, because the mean of its divisors is an integer number (2280372885).

Almost surely, 2^9121300073 is an apocalyptic number.

It is an amenable number.

9121300073 is a deficient number, since it is larger than the sum of its proper divisors (191467).

9121300073 is a wasteful number, since it uses less digits than its factorization.

9121300073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191466.

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 9121300073 is about 95505.4976061588. The cubic root of 9121300073 is about 2089.3871262203.

The spelling of 9121300073 in words is "nine billion, one hundred twenty-one million, three hundred thousand, seventy-three".