11990430000 has 500 divisors, whose sum is σ = 44083582488. Its totient is φ = 3144960000.

The previous prime is 11990429963. The next prime is 11990430043. The reversal of 11990430000 is 3409911.

11990430000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (500).

It is a Harshad number since it is a multiple of its sum of digits (27).

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 99 ways as a sum of consecutive naturals, for example, 91529935 + ... + 91530065.

Almost surely, 2^11990430000 is an apocalyptic number.

11990430000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11990430000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22041791244).

11990430000 is an abundant number, since it is smaller than the sum of its proper divisors (32093152488).

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

11990430000 is a wasteful number, since it uses less digits than its factorization.

11990430000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284 (or 254 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

Adding to 11990430000 its reverse (3409911), we get a palindrome (11993839911).

The spelling of 11990430000 in words is "eleven billion, nine hundred ninety million, four hundred thirty thousand".