11501235252 has 96 divisors (see below), whose sum is σ = 32979744000. Its totient is φ = 3443181696.

The previous prime is 11501235133. The next prime is 11501235257. The reversal of 11501235252 is 25253210511.

11501235252 is a `hidden beast` number, since 1 + 15 + 0 + 123 + 525 + 2 = 666.

11501235252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 (11501235257) 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 31 ways as a sum of consecutive naturals, for example, 58752 + ... + 162647.

It is an arithmetic number, because the mean of its divisors is an integer number (343539000).

Almost surely, 2^11501235252 is an apocalyptic number.

11501235252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11501235252 is an abundant number, since it is smaller than the sum of its proper divisors (21478508748).

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

11501235252 is a wasteful number, since it uses less digits than its factorization.

11501235252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221462 (or 221454 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

Adding to 11501235252 its reverse (25253210511), we get a palindrome (36754445763).

It can be divided in two parts, 11501 and 235252, that added together give a triangular number (246753 = T₇₀₂).

The spelling of 11501235252 in words is "eleven billion, five hundred one million, two hundred thirty-five thousand, two hundred fifty-two".