1271177362112 has 28 divisors (see below), whose sum is σ = 2882848661520. Its totient is φ = 544790297856.

The previous prime is 1271177362109. The next prime is 1271177362157. The reversal of 1271177362112 is 2112637711721.

It is a tau number, because it is divible by the number of its divisors (28).

It is a super-4 number, since 4×1271177362112⁴ (a number of 50 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1271177362112.

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 3 ways as a sum of consecutive naturals, for example, 1418724287 + ... + 1418725182.

Almost surely, 2^{1271177362112} is an apocalyptic number.

It is an amenable number.

1271177362112 is an abundant number, since it is smaller than the sum of its proper divisors (1611671299408).

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

1271177362112 is an equidigital number, since it uses as much as digits as its factorization.

1271177362112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2837449488 (or 2837449478 counting only the distinct ones).

The product of its digits is 49392, while the sum is 41.

The spelling of 1271177362112 in words is "one trillion, two hundred seventy-one billion, one hundred seventy-seven million, three hundred sixty-two thousand, one hundred twelve".