1272038310871 has 4 divisors (see below), whose sum is σ = 1272071057544. Its totient is φ = 1272005564200.

The previous prime is 1272038310863. The next prime is 1272038310901. The reversal of 1272038310871 is 1780138302721.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1272038310871 - 2³ = 1272038310863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1272038310971) by changing a digit.

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, 16315000 + ... + 16392781.

It is an arithmetic number, because the mean of its divisors is an integer number (318017764386).

Almost surely, 2^{1272038310871} is an apocalyptic number.

1272038310871 is a deficient number, since it is larger than the sum of its proper divisors (32746673).

1272038310871 is an equidigital number, since it uses as much as digits as its factorization.

1272038310871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32746672.

The product of its (nonzero) digits is 112896, while the sum is 43.

The spelling of 1272038310871 in words is "one trillion, two hundred seventy-two billion, thirty-eight million, three hundred ten thousand, eight hundred seventy-one".