11131730 has 8 divisors (see below), whose sum is σ = 20037132. Its totient is φ = 4452688.

The previous prime is 11131721. The next prime is 11131733. The reversal of 11131730 is 3713111.

It can be written as a sum of positive squares in 2 ways, for example, as 11042329 + 89401 = 3323^2 + 299^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 11131699 and 11131708.

It is not an unprimeable number, because it can be changed into a prime (11131733) 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 in 3 ways as a sum of consecutive naturals, for example, 556577 + ... + 556596.

Almost surely, 2^11131730 is an apocalyptic number.

11131730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11131730 is a deficient number, since it is larger than the sum of its proper divisors (8905402).

11131730 is a wasteful number, since it uses less digits than its factorization.

11131730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1113180.

The product of its (nonzero) digits is 63, while the sum is 17.

The square root of 11131730 is about 3336.4247331537. The cubic root of 11131730 is about 223.2822610376.

Adding to 11131730 its reverse (3713111), we get a palindrome (14844841).

The spelling of 11131730 in words is "eleven million, one hundred thirty-one thousand, seven hundred thirty".