2011323010320 has 240 divisors, whose sum is σ = 7470888467952. Its totient is φ = 481713868800.

The previous prime is 2011323010303. The next prime is 2011323010327. The reversal of 2011323010320 is 230103231102.

2011323010320 is a `hidden beast` number, since 2 + 0 + 11 + 32 + 301 + 0 + 320 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 94283387136 + 1917039623184 = 307056^2 + 1384572^2 .

It is a tau number, because it is divible by the number of its divisors (240).

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

It is a junction number, because it is equal to n+sod(n) for n = 2011323010293 and 2011323010302.

It is not an unprimeable number, because it can be changed into a prime (2011323010327) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2557531 + ... + 3250170.

Almost surely, 2^{2011323010320} is an apocalyptic number.

2011323010320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011323010320 is an abundant number, since it is smaller than the sum of its proper divisors (5459565457632).

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

2011323010320 is a wasteful number, since it uses less digits than its factorization.

2011323010320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5807770 (or 5807761 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 2011323010320 its reverse (230103231102), we get a palindrome (2241426241422).

The spelling of 2011323010320 in words is "two trillion, eleven billion, three hundred twenty-three million, ten thousand, three hundred twenty".