20011310240 has 96 divisors (see below), whose sum is σ = 48014902656. Its totient is φ = 7879889920.

The previous prime is 20011310219. The next prime is 20011310257. The reversal of 20011310240 is 4201311002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14574194 + ... + 14575566.

It is an arithmetic number, because the mean of its divisors is an integer number (500155236).

Almost surely, 2^20011310240 is an apocalyptic number.

20011310240 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 20011310240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24007451328).

20011310240 is an abundant number, since it is smaller than the sum of its proper divisors (28003592416).

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

20011310240 is a wasteful number, since it uses less digits than its factorization.

20011310240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2742 (or 2734 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 20011310240 its reverse (4201311002), we get a palindrome (24212621242).

The spelling of 20011310240 in words is "twenty billion, eleven million, three hundred ten thousand, two hundred forty".