11323043290729 has 3 divisors (see below), whose sum is σ = 11323046655703. Its totient is φ = 11323039925756.

The previous prime is 11323043290627. The next prime is 11323043290733. The reversal of 11323043290729 is 92709234032311.

The square root of 11323043290729 is 3364973.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 6441824705625 + 4881218585104 = 2538075^2 + 2209348^2 .

It is not a de Polignac number, because 11323043290729 - 2¹⁷ = 11323043159657 is a prime.

It is a super-2 number, since 2×11323043290729² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11323043290789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1682487 + ... + 5047459.

Almost surely, 2^{11323043290729} is an apocalyptic number.

11323043290729 is the 3364973-rd square number.

11323043290729 is the 1682487-th centered octagonal number.

It is an amenable number.

11323043290729 is a deficient number, since it is larger than the sum of its proper divisors (3364974).

11323043290729 is an frugal number, since it uses more digits than its factorization.

11323043290729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6729946 (or 3364973 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 46.

The spelling of 11323043290729 in words is "eleven trillion, three hundred twenty-three billion, forty-three million, two hundred ninety thousand, seven hundred twenty-nine".