11535131500 has 48 divisors (see below), whose sum is σ = 25537913856. Its totient is φ = 4550832000.

The previous prime is 11535131497. The next prime is 11535131561. The reversal of 11535131500 is 513153511.

It is a happy number.

11535131500 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 (25).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 121516 + ... + 194515.

It is an arithmetic number, because the mean of its divisors is an integer number (532039872).

Almost surely, 2^11535131500 is an apocalyptic number.

11535131500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11535131500 is an abundant number, since it is smaller than the sum of its proper divisors (14002782356).

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

11535131500 is a wasteful number, since it uses less digits than its factorization.

11535131500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316123 (or 316111 counting only the distinct ones).

The product of its (nonzero) digits is 1125, while the sum is 25.

The spelling of 11535131500 in words is "eleven billion, five hundred thirty-five million, one hundred thirty-one thousand, five hundred".