2011344281 has 2 divisors, whose sum is σ = 2011344282. Its totient is φ = 2011344280.

The previous prime is 2011344233. The next prime is 2011344301. The reversal of 2011344281 is 1824431102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1961161225 + 50183056 = 44285^2 + 7084^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2011344281 is a prime.

It is a super-2 number, since 2×2011344281² = 8091011633422813922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2011344281.

It is not a weakly prime, because it can be changed into another prime (2011344211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005672140 + 1005672141.

It is an arithmetic number, because the mean of its divisors is an integer number (1005672141).

Almost surely, 2^2011344281 is an apocalyptic number.

It is an amenable number.

2011344281 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011344281 is an equidigital number, since it uses as much as digits as its factorization.

2011344281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 2011344281 is about 44848.0131220994. The cubic root of 2011344281 is about 1262.2987098096.

Adding to 2011344281 its reverse (1824431102), we get a palindrome (3835775383).

The spelling of 2011344281 in words is "two billion, eleven million, three hundred forty-four thousand, two hundred eighty-one".