2261823311 has 4 divisors (see below), whose sum is σ = 2467443624. Its totient is φ = 2056203000.

The previous prime is 2261823301. The next prime is 2261823329. The reversal of 2261823311 is 1133281622.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2261823311 - 2¹⁰ = 2261822287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2261823301) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 102810140 + ... + 102810161.

It is an arithmetic number, because the mean of its divisors is an integer number (616860906).

Almost surely, 2^2261823311 is an apocalyptic number.

2261823311 is a deficient number, since it is larger than the sum of its proper divisors (205620313).

2261823311 is a wasteful number, since it uses less digits than its factorization.

2261823311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205620312.

The product of its digits is 3456, while the sum is 29.

The square root of 2261823311 is about 47558.6302473063. The cubic root of 2261823311 is about 1312.6619358896.

The spelling of 2261823311 in words is "two billion, two hundred sixty-one million, eight hundred twenty-three thousand, three hundred eleven".