90202313171 has 4 divisors (see below), whose sum is σ = 90202983192. Its totient is φ = 90201643152.

The previous prime is 90202313143. The next prime is 90202313189. The reversal of 90202313171 is 17131320209.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 90202313171 - 2¹⁴ = 90202296787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90202313111) 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, 55130 + ... + 428303.

It is an arithmetic number, because the mean of its divisors is an integer number (22550745798).

Almost surely, 2^90202313171 is an apocalyptic number.

90202313171 is a deficient number, since it is larger than the sum of its proper divisors (670021).

90202313171 is a wasteful number, since it uses less digits than its factorization.

90202313171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670020.

The product of its (nonzero) digits is 2268, while the sum is 29.

The spelling of 90202313171 in words is "ninety billion, two hundred two million, three hundred thirteen thousand, one hundred seventy-one".