11031388 has 12 divisors (see below), whose sum is σ = 19390840. Its totient is φ = 5491152.

The previous prime is 11031373. The next prime is 11031389. The reversal of 11031388 is 88313011.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11031389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5106 + ... + 6937.

Almost surely, 2^11031388 is an apocalyptic number.

It is an amenable number.

11031388 is a deficient number, since it is larger than the sum of its proper divisors (8359452).

11031388 is a wasteful number, since it uses less digits than its factorization.

11031388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12276 (or 12274 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 11031388 is about 3321.3533386257. The cubic root of 11031388 is about 222.6093423775.

Adding to 11031388 its reverse (88313011), we get a palindrome (99344399).

The spelling of 11031388 in words is "eleven million, thirty-one thousand, three hundred eighty-eight".