2113128000 has 336 divisors, whose sum is σ = 7846185984. Its totient is φ = 562982400.

The previous prime is 2113127977. The next prime is 2113128019. The reversal of 2113128000 is 8213112.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 47 ways as a sum of consecutive naturals, for example, 1943457 + ... + 1944543.

It is an arithmetic number, because the mean of its divisors is an integer number (23351744).

Almost surely, 2^2113128000 is an apocalyptic number.

2113128000 is a gapful number since it is divisible by the number (20) 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 2113128000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3923092992).

2113128000 is an abundant number, since it is smaller than the sum of its proper divisors (5733057984).

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

2113128000 is an equidigital number, since it uses as much as digits as its factorization.

2113128000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1129 (or 1097 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 2113128000 is about 45968.7720088323. The cubic root of 2113128000 is about 1283.2421066690.

The spelling of 2113128000 in words is "two billion, one hundred thirteen million, one hundred twenty-eight thousand".