11320420541 has 4 divisors (see below), whose sum is σ = 11710779900. Its totient is φ = 10930061184.

The previous prime is 11320420523. The next prime is 11320420543. The reversal of 11320420541 is 14502402311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8732154916 + 2588265625 = 93446^2 + 50875^2 .

It is a cyclic number.

It is not a de Polignac number, because 11320420541 - 2⁶ = 11320420477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11320420543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195179636 + ... + 195179693.

It is an arithmetic number, because the mean of its divisors is an integer number (2927694975).

Almost surely, 2^11320420541 is an apocalyptic number.

It is an amenable number.

11320420541 is a deficient number, since it is larger than the sum of its proper divisors (390359359).

11320420541 is an equidigital number, since it uses as much as digits as its factorization.

11320420541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390359358.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 11320420541 its reverse (14502402311), we get a palindrome (25822822852).

The spelling of 11320420541 in words is "eleven billion, three hundred twenty million, four hundred twenty thousand, five hundred forty-one".