11130538 has 4 divisors (see below), whose sum is σ = 16695810. Its totient is φ = 5565268.

The previous prime is 11130533. The next prime is 11130569. The reversal of 11130538 is 83503111.

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

It can be written as a sum of positive squares in only one way, i.e., 11042329 + 88209 = 3323^2 + 297^2 .

It is not an unprimeable number, because it can be changed into a prime (11130533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2782633 + ... + 2782636.

Almost surely, 2^11130538 is an apocalyptic number.

11130538 is a deficient number, since it is larger than the sum of its proper divisors (5565272).

11130538 is an equidigital number, since it uses as much as digits as its factorization.

11130538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5565271.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 11130538 is about 3336.2460940404. The cubic root of 11130538 is about 223.2742909690.

Adding to 11130538 its reverse (83503111), we get a palindrome (94633649).

The spelling of 11130538 in words is "eleven million, one hundred thirty thousand, five hundred thirty-eight".