11154240252 has 72 divisors (see below), whose sum is σ = 28519873200. Its totient is φ = 3675449088.

The previous prime is 11154240197. The next prime is 11154240257. The reversal of 11154240252 is 25204245111.

It is a happy number.

11154240252 is a `hidden beast` number, since 111 + 542 + 4 + 0 + 2 + 5 + 2 = 666.

11154240252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×11154240252³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11154240257) 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 23 ways as a sum of consecutive naturals, for example, 1957824 + ... + 1963512.

It is an arithmetic number, because the mean of its divisors is an integer number (396109350).

Almost surely, 2^11154240252 is an apocalyptic number.

11154240252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11154240252 is an abundant number, since it is smaller than the sum of its proper divisors (17365632948).

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

11154240252 is a wasteful number, since it uses less digits than its factorization.

11154240252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6315 (or 6310 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Adding to 11154240252 its reverse (25204245111), we get a palindrome (36358485363).

The spelling of 11154240252 in words is "eleven billion, one hundred fifty-four million, two hundred forty thousand, two hundred fifty-two".