11126321261 has 8 divisors (see below), whose sum is σ = 12138780000. Its totient is φ = 10114025040.

The previous prime is 11126321209. The next prime is 11126321273. The reversal of 11126321261 is 16212362111.

11126321261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11126321261 - 2³⁰ = 10052579437 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11126321261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11126321161) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 135890 + ... + 201788.

It is an arithmetic number, because the mean of its divisors is an integer number (1517347500).

Almost surely, 2^11126321261 is an apocalyptic number.

11126321261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11126321261 is a deficient number, since it is larger than the sum of its proper divisors (1012458739).

11126321261 is a wasteful number, since it uses less digits than its factorization.

11126321261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81259.

The product of its digits is 864, while the sum is 26.

Adding to 11126321261 its reverse (16212362111), we get a palindrome (27338683372).

The spelling of 11126321261 in words is "eleven billion, one hundred twenty-six million, three hundred twenty-one thousand, two hundred sixty-one".