2311005606 has 128 divisors (see below), whose sum is σ = 6014238720. Its totient is φ = 574895232.

The previous prime is 2311005589. The next prime is 2311005611. The reversal of 2311005606 is 6065001132.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3806955 + ... + 3807561.

It is an arithmetic number, because the mean of its divisors is an integer number (46986240).

Almost surely, 2^2311005606 is an apocalyptic number.

2311005606 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2311005606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3007119360).

2311005606 is an abundant number, since it is smaller than the sum of its proper divisors (3703233114).

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

2311005606 is a wasteful number, since it uses less digits than its factorization.

2311005606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 2311005606 is about 48072.9196741783. The cubic root of 2311005606 is about 1322.1082025442.

Adding to 2311005606 its reverse (6065001132), we get a palindrome (8376006738).

The spelling of 2311005606 in words is "two billion, three hundred eleven million, five thousand, six hundred six".