11540224473 has 4 divisors (see below), whose sum is σ = 15386965968. Its totient is φ = 7693482980.

The previous prime is 11540224433. The next prime is 11540224481. The reversal of 11540224473 is 37442204511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 37442204511 = 3 ⋅12480734837.

It is a cyclic number.

It is not a de Polignac number, because 11540224473 - 2²⁰ = 11539175897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11540224403) 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, 1923370743 + ... + 1923370748.

It is an arithmetic number, because the mean of its divisors is an integer number (3846741492).

Almost surely, 2^11540224473 is an apocalyptic number.

It is an amenable number.

11540224473 is a deficient number, since it is larger than the sum of its proper divisors (3846741495).

11540224473 is an equidigital number, since it uses as much as digits as its factorization.

11540224473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3846741494.

The product of its (nonzero) digits is 26880, while the sum is 33.

Adding to 11540224473 its reverse (37442204511), we get a palindrome (48982428984).

The spelling of 11540224473 in words is "eleven billion, five hundred forty million, two hundred twenty-four thousand, four hundred seventy-three".