11154224513 has 4 divisors (see below), whose sum is σ = 11210845140. Its totient is φ = 11097603888.

The previous prime is 11154224507. The next prime is 11154224533. The reversal of 11154224513 is 31542245111.

It is a happy number.

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 7542575104 + 3611649409 = 86848^2 + 60097^2 .

It is a cyclic number.

It is not a de Polignac number, because 11154224513 - 2²⁰ = 11153175937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11154224533) 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, 28310018 + ... + 28310411.

It is an arithmetic number, because the mean of its divisors is an integer number (2802711285).

Almost surely, 2^11154224513 is an apocalyptic number.

It is an amenable number.

11154224513 is a deficient number, since it is larger than the sum of its proper divisors (56620627).

11154224513 is an equidigital number, since it uses as much as digits as its factorization.

11154224513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56620626.

The product of its digits is 4800, while the sum is 29.

Adding to 11154224513 its reverse (31542245111), we get a palindrome (42696469624).

The spelling of 11154224513 in words is "eleven billion, one hundred fifty-four million, two hundred twenty-four thousand, five hundred thirteen".