2011023500 has 96 divisors (see below), whose sum is σ = 4697626752. Its totient is φ = 749414400.

The previous prime is 2011023499. The next prime is 2011023503. The reversal of 2011023500 is 53201102.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2011023503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 874352 + ... + 876648.

It is an arithmetic number, because the mean of its divisors is an integer number (48933612).

Almost surely, 2^2011023500 is an apocalyptic number.

2011023500 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 2011023500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2348813376).

2011023500 is an abundant number, since it is smaller than the sum of its proper divisors (2686603252).

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

2011023500 is a wasteful number, since it uses less digits than its factorization.

2011023500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2436 (or 2424 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 2011023500 is about 44844.4366672166. The cubic root of 2011023500 is about 1262.2315999709.

Adding to 2011023500 its reverse (53201102), we get a palindrome (2064224602).

The spelling of 2011023500 in words is "two billion, eleven million, twenty-three thousand, five hundred".