11143404252 has 60 divisors (see below), whose sum is σ = 29326697400. Its totient is φ = 3689522784.

The previous prime is 11143404247. The next prime is 11143404257. The reversal of 11143404252 is 25240434111.

11143404252 is a `hidden beast` number, since 1 + 1 + 1 + 4 + 3 + 404 + 252 = 666.

11143404252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11143404247) and next prime (11143404257).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11143404257) 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, 67138 + ... + 163689.

It is an arithmetic number, because the mean of its divisors is an integer number (488778290).

Almost surely, 2^11143404252 is an apocalyptic number.

11143404252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11143404252 is an abundant number, since it is smaller than the sum of its proper divisors (18183293148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11143404252 is a wasteful number, since it uses less digits than its factorization.

11143404252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230992 (or 230981 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 11143404252 its reverse (25240434111), we get a palindrome (36383838363).

The spelling of 11143404252 in words is "eleven billion, one hundred forty-three million, four hundred four thousand, two hundred fifty-two".