11190231 has 20 divisors (see below), whose sum is σ = 18003832. Its totient is φ = 6885648.

The previous prime is 11190217. The next prime is 11190251. The reversal of 11190231 is 13209111.

It is not a de Polignac number, because 11190231 - 2¹¹ = 11188183 is a prime.

It is a super-2 number, since 2×11190231² = 250442539666722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11190251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4261 + ... + 6366.

Almost surely, 2^11190231 is an apocalyptic number.

11190231 is a deficient number, since it is larger than the sum of its proper divisors (6813601).

11190231 is a wasteful number, since it uses less digits than its factorization.

11190231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10652 (or 10643 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

The square root of 11190231 is about 3345.1802642010. The cubic root of 11190231 is about 223.6727190639.

Adding to 11190231 its reverse (13209111), we get a palindrome (24399342).

The spelling of 11190231 in words is "eleven million, one hundred ninety thousand, two hundred thirty-one".