2011012305 has 8 divisors (see below), whose sum is σ = 3217619712. Its totient is φ = 1072539888.

The previous prime is 2011012301. The next prime is 2011012319. The reversal of 2011012305 is 5032101102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2011012305 - 2² = 2011012301 is a prime.

It is a super-2 number, since 2×2011012305² = 8088340981722826050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 134067487 = 2011012305 / (2 + 0 + 1 + 1 + 0 + 1 + 2 + 3 + 0 + 5).

It is not an unprimeable number, because it can be changed into a prime (2011012301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67033729 + ... + 67033758.

It is an arithmetic number, because the mean of its divisors is an integer number (402202464).

Almost surely, 2^2011012305 is an apocalyptic number.

It is an amenable number.

2011012305 is a deficient number, since it is larger than the sum of its proper divisors (1206607407).

2011012305 is a wasteful number, since it uses less digits than its factorization.

2011012305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134067495.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 2011012305 is about 44844.3118466545. The cubic root of 2011012305 is about 1262.2292577624.

Adding to 2011012305 its reverse (5032101102), we get a palindrome (7043113407).

The spelling of 2011012305 in words is "two billion, eleven million, twelve thousand, three hundred five".