11997524530 has 32 divisors (see below), whose sum is σ = 21965022720. Its totient is φ = 4717014720.

The previous prime is 11997524491. The next prime is 11997524593. The reversal of 11997524530 is 3542579911.

11997524530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 974151 + ... + 986389.

It is an arithmetic number, because the mean of its divisors is an integer number (686406960).

Almost surely, 2^11997524530 is an apocalyptic number.

11997524530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11997524530 is a deficient number, since it is larger than the sum of its proper divisors (9967498190).

11997524530 is a wasteful number, since it uses less digits than its factorization.

11997524530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13914.

The product of its (nonzero) digits is 340200, while the sum is 46.

The spelling of 11997524530 in words is "eleven billion, nine hundred ninety-seven million, five hundred twenty-four thousand, five hundred thirty".