11355131052 has 18 divisors (see below), whose sum is σ = 28703248028. Its totient is φ = 3785043672.

The previous prime is 11355131003. The next prime is 11355131059. The reversal of 11355131052 is 25013155311.

11355131052 is a `hidden beast` number, since 1 + 1 + 3 + 551 + 3 + 105 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (11355131059) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 157710118 + ... + 157710189.

Almost surely, 2^11355131052 is an apocalyptic number.

11355131052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11355131052 is an abundant number, since it is smaller than the sum of its proper divisors (17348116976).

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

11355131052 is a wasteful number, since it uses less digits than its factorization.

11355131052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315420317 (or 315420312 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 27.

Adding to 11355131052 its reverse (25013155311), we get a palindrome (36368286363).

The spelling of 11355131052 in words is "eleven billion, three hundred fifty-five million, one hundred thirty-one thousand, fifty-two".