12101530000 has 150 divisors (see below), whose sum is σ = 34083906846. Its totient is φ = 4148928000.

The previous prime is 12101529941. The next prime is 12101530003. The reversal of 12101530000 is 3510121.

It can be written as a sum of positive squares in 5 ways, for example, as 1878702336 + 10222827664 = 43344^2 + 101108^2 .

It is not an unprimeable number, because it can be changed into a prime (12101530003) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 477652 + ... + 502348.

Almost surely, 2^12101530000 is an apocalyptic number.

12101530000 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 12101530000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17041953423).

12101530000 is an abundant number, since it is smaller than the sum of its proper divisors (21982376846).

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

12101530000 is an equidigital number, since it uses as much as digits as its factorization.

12101530000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24739 (or 24711 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 13.

The spelling of 12101530000 in words is "twelve billion, one hundred one million, five hundred thirty thousand".