2113230240 has 288 divisors, whose sum is σ = 7960680000. Its totient is φ = 506204160.

The previous prime is 2113230239. The next prime is 2113230253. The reversal of 2113230240 is 420323112.

It is a tau number, because it is divible by the number of its divisors (288).

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1409011 + ... + 1410509.

It is an arithmetic number, because the mean of its divisors is an integer number (27641250).

Almost surely, 2^2113230240 is an apocalyptic number.

2113230240 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 2113230240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3980340000).

2113230240 is an abundant number, since it is smaller than the sum of its proper divisors (5847449760).

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

2113230240 is a wasteful number, since it uses less digits than its factorization.

2113230240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1620 (or 1609 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2113230240 is about 45969.8840546721. The cubic root of 2113230240 is about 1283.2628021431.

Adding to 2113230240 its reverse (420323112), we get a palindrome (2533553352).

The spelling of 2113230240 in words is "two billion, one hundred thirteen million, two hundred thirty thousand, two hundred forty".