9871001423 has 2 divisors, whose sum is σ = 9871001424. Its totient is φ = 9871001422.

The previous prime is 9871001417. The next prime is 9871001443. The reversal of 9871001423 is 3241001789.

9871001423 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (3241001789) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9871001423 - 2⁶ = 9871001359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9871001443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4935500711 + 4935500712.

It is an arithmetic number, because the mean of its divisors is an integer number (4935500712).

Almost surely, 2^9871001423 is an apocalyptic number.

9871001423 is a deficient number, since it is larger than the sum of its proper divisors (1).

9871001423 is an equidigital number, since it uses as much as digits as its factorization.

9871001423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 9871001423 is about 99352.9135103747. The cubic root of 9871001423 is about 2145.1306004814.

The spelling of 9871001423 in words is "nine billion, eight hundred seventy-one million, one thousand, four hundred twenty-three".