31712408050173 has 4 divisors (see below), whose sum is σ = 42283210733568. Its totient is φ = 21141605366780.

The previous prime is 31712408050123. The next prime is 31712408050187. The reversal of 31712408050173 is 37105080421713.

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 a cyclic number.

It is not a de Polignac number, because 31712408050173 - 2¹³ = 31712408041981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31712408050123) 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, 5285401341693 + ... + 5285401341698.

It is an arithmetic number, because the mean of its divisors is an integer number (10570802683392).

Almost surely, 2^{31712408050173} is an apocalyptic number.

It is an amenable number.

31712408050173 is a deficient number, since it is larger than the sum of its proper divisors (10570802683395).

31712408050173 is a wasteful number, since it uses less digits than its factorization.

31712408050173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10570802683394.

The product of its (nonzero) digits is 141120, while the sum is 42.

Adding to 31712408050173 its reverse (37105080421713), we get a palindrome (68817488471886).

The spelling of 31712408050173 in words is "thirty-one trillion, seven hundred twelve billion, four hundred eight million, fifty thousand, one hundred seventy-three".