11528381093 has 8 divisors (see below), whose sum is σ = 11597952600. Its totient is φ = 11458843648.

The previous prime is 11528381083. The next prime is 11528381099. The reversal of 11528381093 is 39018382511.

It can be written as a sum of positive squares in 4 ways, for example, as 7495750084 + 4032631009 = 86578^2 + 63503^2 .

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 11528381093 - 2⁴ = 11528381077 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 11528381093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11528381099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1089653 + ... + 1100181.

It is an arithmetic number, because the mean of its divisors is an integer number (1449744075).

Almost surely, 2^11528381093 is an apocalyptic number.

It is an amenable number.

11528381093 is a deficient number, since it is larger than the sum of its proper divisors (69571507).

11528381093 is a wasteful number, since it uses less digits than its factorization.

11528381093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17031.

The product of its (nonzero) digits is 51840, while the sum is 41.

The spelling of 11528381093 in words is "eleven billion, five hundred twenty-eight million, three hundred eighty-one thousand, ninety-three".