11170212481 has 4 divisors (see below), whose sum is σ = 11245180500. Its totient is φ = 11095244464.

The previous prime is 11170212451. The next prime is 11170212509. The reversal of 11170212481 is 18421207111.

11170212481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18421207111 = 37061 ⋅497051.

It can be written as a sum of positive squares in 2 ways, for example, as 1569348225 + 9600864256 = 39615^2 + 97984^2 .

It is a cyclic number.

It is not a de Polignac number, because 11170212481 - 2⁷ = 11170212353 is a prime.

It is a super-2 number, since 2×11170212481² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11170212401) 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 3 ways as a sum of consecutive naturals, for example, 37483786 + ... + 37484083.

It is an arithmetic number, because the mean of its divisors is an integer number (2811295125).

Almost surely, 2^11170212481 is an apocalyptic number.

It is an amenable number.

11170212481 is a deficient number, since it is larger than the sum of its proper divisors (74968019).

11170212481 is an equidigital number, since it uses as much as digits as its factorization.

11170212481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74968018.

The product of its (nonzero) digits is 896, while the sum is 28.

Adding to 11170212481 its reverse (18421207111), we get a palindrome (29591419592).

The spelling of 11170212481 in words is "eleven billion, one hundred seventy million, two hundred twelve thousand, four hundred eighty-one".