11273555329 has 9 divisors (see below), whose sum is σ = 11411212873. Its totient is φ = 11137542592.

The previous prime is 11273555327. The next prime is 11273555339. The reversal of 11273555329 is 92355537211.

The square root of 11273555329 is 106177.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1103236225 + 10170319104 = 33215^2 + 100848^2 .

It is not a de Polignac number, because 11273555329 - 2¹ = 11273555327 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11273555327) 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 8 ways as a sum of consecutive naturals, for example, 9449157 + ... + 9450349.

Almost surely, 2^11273555329 is an apocalyptic number.

11273555329 is the 106177-th square number.

11273555329 is the 53089-th centered octagonal number.

It is an amenable number.

11273555329 is a deficient number, since it is larger than the sum of its proper divisors (137657544).

11273555329 is an frugal number, since it uses more digits than its factorization.

11273555329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2564 (or 1282 counting only the distinct ones).

The product of its digits is 283500, while the sum is 43.

The spelling of 11273555329 in words is "eleven billion, two hundred seventy-three million, five hundred fifty-five thousand, three hundred twenty-nine".