71563203171323 has 4 divisors (see below), whose sum is σ = 71563227311688. Its totient is φ = 71563179030960.

The previous prime is 71563203171319. The next prime is 71563203171329. The reversal of 71563203171323 is 32317130236517.

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 71563203171323 - 2² = 71563203171319 is a prime.

It is a super-3 number, since 3×71563203171323³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71563203171329) 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, 6879386 + ... + 13800447.

It is an arithmetic number, because the mean of its divisors is an integer number (17890806827922).

Almost surely, 2^{71563203171323} is an apocalyptic number.

71563203171323 is a deficient number, since it is larger than the sum of its proper divisors (24140365).

71563203171323 is a wasteful number, since it uses less digits than its factorization.

71563203171323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24140364.

The product of its (nonzero) digits is 476280, while the sum is 44.

The spelling of 71563203171323 in words is "seventy-one trillion, five hundred sixty-three billion, two hundred three million, one hundred seventy-one thousand, three hundred twenty-three".