11271280523 has 8 divisors (see below), whose sum is σ = 11417419200. Its totient is φ = 11125228608.

The previous prime is 11271280507. The next prime is 11271280549. The reversal of 11271280523 is 32508217211.

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 11271280523 - 2⁴ = 11271280507 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11271280523.

It is not an unprimeable number, because it can be changed into a prime (11271280723) 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 7 ways as a sum of consecutive naturals, for example, 263993 + ... + 303701.

It is an arithmetic number, because the mean of its divisors is an integer number (1427177400).

Almost surely, 2^11271280523 is an apocalyptic number.

11271280523 is a deficient number, since it is larger than the sum of its proper divisors (146138677).

11271280523 is an equidigital number, since it uses as much as digits as its factorization.

11271280523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43381.

The product of its (nonzero) digits is 6720, while the sum is 32.

Adding to 11271280523 its reverse (32508217211), we get a palindrome (43779497734).

The spelling of 11271280523 in words is "eleven billion, two hundred seventy-one million, two hundred eighty thousand, five hundred twenty-three".