1271171072170 has 8 divisors (see below), whose sum is σ = 2288107929924. Its totient is φ = 508468428864.

The previous prime is 1271171072113. The next prime is 1271171072183. The reversal of 1271171072170 is 712701711721.

It can be written as a sum of positive squares in 2 ways, for example, as 1246096666369 + 25074405801 = 1116287^2 + 158349^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63558553599 + ... + 63558553618.

Almost surely, 2^{1271171072170} is an apocalyptic number.

1271171072170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1271171072170 is a deficient number, since it is larger than the sum of its proper divisors (1016936857754).

1271171072170 is a wasteful number, since it uses less digits than its factorization.

1271171072170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127117107224.

The product of its (nonzero) digits is 9604, while the sum is 37.

Adding to 1271171072170 its reverse (712701711721), we get a palindrome (1983872783891).

The spelling of 1271171072170 in words is "one trillion, two hundred seventy-one billion, one hundred seventy-one million, seventy-two thousand, one hundred seventy".