12320171602 has 16 divisors (see below), whose sum is σ = 18751776120. Its totient is φ = 6069745152.

The previous prime is 12320171537. The next prime is 12320171659. The reversal of 12320171602 is 20617102321.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 11868141481 + 452030121 = 108941^2 + 21261^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109974 + ... + 191662.

Almost surely, 2^12320171602 is an apocalyptic number.

12320171602 is a deficient number, since it is larger than the sum of its proper divisors (6431604518).

12320171602 is a wasteful number, since it uses less digits than its factorization.

12320171602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82797.

The product of its (nonzero) digits is 1008, while the sum is 25.

Adding to 12320171602 its reverse (20617102321), we get a palindrome (32937273923).

The spelling of 12320171602 in words is "twelve billion, three hundred twenty million, one hundred seventy-one thousand, six hundred two".