2011302320 has 80 divisors (see below), whose sum is σ = 4840856832. Its totient is φ = 776355840.

The previous prime is 2011302313. The next prime is 2011302331. The reversal of 2011302320 is 232031102.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 2011302295 and 2011302304.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1072904 + ... + 1074776.

Almost surely, 2^2011302320 is an apocalyptic number.

2011302320 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 2011302320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2420428416).

2011302320 is an abundant number, since it is smaller than the sum of its proper divisors (2829554512).

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

2011302320 is a wasteful number, since it uses less digits than its factorization.

2011302320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2350 (or 2344 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2011302320 is about 44847.5453062930. The cubic root of 2011302320 is about 1262.2899316531.

Adding to 2011302320 its reverse (232031102), we get a palindrome (2243333422).

The spelling of 2011302320 in words is "two billion, eleven million, three hundred two thousand, three hundred twenty".