11131804 has 24 divisors (see below), whose sum is σ = 20805120. Its totient is φ = 5193216.

The previous prime is 11131801. The next prime is 11131807. The reversal of 11131804 is 40813111.

It is an interprime number because it is at equal distance from previous prime (11131801) and next prime (11131807).

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11131801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7992 + ... + 9280.

It is an arithmetic number, because the mean of its divisors is an integer number (866880).

Almost surely, 2^11131804 is an apocalyptic number.

It is an amenable number.

11131804 is a deficient number, since it is larger than the sum of its proper divisors (9673316).

11131804 is a wasteful number, since it uses less digits than its factorization.

11131804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1437 (or 1435 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 11131804 is about 3336.4358228505. The cubic root of 11131804 is about 223.2827558050.

Adding to 11131804 its reverse (40813111), we get a palindrome (51944915).

It can be divided in two parts, 11131 and 804, that added together give a triangular number (11935 = T₁₅₄).

The spelling of 11131804 in words is "eleven million, one hundred thirty-one thousand, eight hundred four".