201310171705 has 48 divisors (see below), whose sum is σ = 259415700624. Its totient is φ = 149918791680.

The previous prime is 201310171693. The next prime is 201310171739. The reversal of 201310171705 is 507171013102.

It can be written as a sum of positive squares in 8 ways, for example, as 1455575104 + 199854596601 = 38152^2 + 447051^2 .

It is not a de Polignac number, because 201310171705 - 2¹³ = 201310163513 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 37023247 + ... + 37028683.

It is an arithmetic number, because the mean of its divisors is an integer number (5404493763).

Almost surely, 2^201310171705 is an apocalyptic number.

It is an amenable number.

201310171705 is a deficient number, since it is larger than the sum of its proper divisors (58105528919).

201310171705 is a wasteful number, since it uses less digits than its factorization.

201310171705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5834 (or 5815 counting only the distinct ones).

The product of its (nonzero) digits is 1470, while the sum is 28.

Adding to 201310171705 its reverse (507171013102), we get a palindrome (708481184807).

The spelling of 201310171705 in words is "two hundred one billion, three hundred ten million, one hundred seventy-one thousand, seven hundred five".