1271423081045 has 32 divisors (see below), whose sum is σ = 1653879131520. Its totient is φ = 932722801920.

The previous prime is 1271423081023. The next prime is 1271423081057. The reversal of 1271423081045 is 5401803241721.

It is a happy number.

It is not a de Polignac number, because 1271423081045 - 2¹² = 1271423076949 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65087930 + ... + 65107460.

It is an arithmetic number, because the mean of its divisors is an integer number (51683722860).

Almost surely, 2^{1271423081045} is an apocalyptic number.

It is an amenable number.

1271423081045 is a deficient number, since it is larger than the sum of its proper divisors (382456050475).

1271423081045 is a wasteful number, since it uses less digits than its factorization.

1271423081045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26085.

The product of its (nonzero) digits is 53760, while the sum is 38.

The spelling of 1271423081045 in words is "one trillion, two hundred seventy-one billion, four hundred twenty-three million, eighty-one thousand, forty-five".