1271880107172 has 48 divisors (see below), whose sum is σ = 3367625829120. Its totient is φ = 414939607776.

The previous prime is 1271880107119. The next prime is 1271880107207. The reversal of 1271880107172 is 2717010881721.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125278623 + ... + 125288774.

It is an arithmetic number, because the mean of its divisors is an integer number (70158871440).

Almost surely, 2^{1271880107172} is an apocalyptic number.

1271880107172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1271880107172 is an abundant number, since it is smaller than the sum of its proper divisors (2095745721948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1271880107172 is a wasteful number, since it uses less digits than its factorization.

1271880107172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250567457 (or 250567449 counting only the distinct ones).

The product of its (nonzero) digits is 87808, while the sum is 45.

Adding to 1271880107172 its reverse (2717010881721), we get a palindrome (3988890988893).

The spelling of 1271880107172 in words is "one trillion, two hundred seventy-one billion, eight hundred eighty million, one hundred seven thousand, one hundred seventy-two".