1271073823 has 2 divisors, whose sum is σ = 1271073824. Its totient is φ = 1271073822.

The previous prime is 1271073787. The next prime is 1271073827. The reversal of 1271073823 is 3283701721.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (3283701721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1271073823 - 2²¹ = 1268976671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1271073827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 635536911 + 635536912.

It is an arithmetic number, because the mean of its divisors is an integer number (635536912).

Almost surely, 2^1271073823 is an apocalyptic number.

1271073823 is a deficient number, since it is larger than the sum of its proper divisors (1).

1271073823 is an equidigital number, since it uses as much as digits as its factorization.

1271073823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 1271073823 is about 35652.1222790453. The cubic root of 1271073823 is about 1083.2372640226.

The spelling of 1271073823 in words is "one billion, two hundred seventy-one million, seventy-three thousand, eight hundred twenty-three".