171442113412 has 6 divisors (see below), whose sum is σ = 300023698478. Its totient is φ = 85721056704.

The previous prime is 171442113317. The next prime is 171442113449. The reversal of 171442113412 is 214311244171.

It can be written as a sum of positive squares in only one way, i.e., 140337147456 + 31104965956 = 374616^2 + 176366^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21430264173 + ... + 21430264180.

Almost surely, 2^171442113412 is an apocalyptic number.

It is an amenable number.

171442113412 is a deficient number, since it is larger than the sum of its proper divisors (128581585066).

171442113412 is a wasteful number, since it uses less digits than its factorization.

171442113412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42860528357 (or 42860528355 counting only the distinct ones).

The product of its digits is 5376, while the sum is 31.

Adding to 171442113412 its reverse (214311244171), we get a palindrome (385753357583).

The spelling of 171442113412 in words is "one hundred seventy-one billion, four hundred forty-two million, one hundred thirteen thousand, four hundred twelve".