11192984261 has 8 divisors (see below), whose sum is σ = 11301859800. Its totient is φ = 11084221440.

The previous prime is 11192984251. The next prime is 11192984267. The reversal of 11192984261 is 16248929111.

11192984261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2833539361 + 8359444900 = 53231^2 + 91430^2 .

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 11192984261 - 2²² = 11188789957 is a prime.

It is a super-2 number, since 2×11192984261² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11192984267) 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, 178721 + ... + 233081.

It is an arithmetic number, because the mean of its divisors is an integer number (1412732475).

Almost surely, 2^11192984261 is an apocalyptic number.

It is an amenable number.

11192984261 is a deficient number, since it is larger than the sum of its proper divisors (108875539).

11192984261 is a wasteful number, since it uses less digits than its factorization.

11192984261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56359.

The product of its digits is 62208, while the sum is 44.

The spelling of 11192984261 in words is "eleven billion, one hundred ninety-two million, nine hundred eighty-four thousand, two hundred sixty-one".