2113540000 has 240 divisors, whose sum is σ = 6116916960. Its totient is φ = 708480000.

The previous prime is 2113539997. The next prime is 2113540001. The reversal of 2113540000 is 453112.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (2113540001) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2859631 + ... + 2860369.

It is an arithmetic number, because the mean of its divisors is an integer number (25487154).

Almost surely, 2^2113540000 is an apocalyptic number.

2113540000 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 2113540000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3058458480).

2113540000 is an abundant number, since it is smaller than the sum of its proper divisors (4003376960).

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

2113540000 is a wasteful number, since it uses less digits than its factorization.

2113540000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793 (or 770 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 2113540000 is about 45973.2530935108. The cubic root of 2113540000 is about 1283.3254998491.

Adding to 2113540000 its reverse (453112), we get a palindrome (2113993112).

The spelling of 2113540000 in words is "two billion, one hundred thirteen million, five hundred forty thousand".