2011310023 has 4 divisors (see below), whose sum is σ = 2017278640. Its totient is φ = 2005341408.

The previous prime is 2011310017. The next prime is 2011310027. The reversal of 2011310023 is 3200131102.

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 2011310023 - 2⁹ = 2011309511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2011309985 and 2011310012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011310027) 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 in 3 ways as a sum of consecutive naturals, for example, 2983803 + ... + 2984476.

It is an arithmetic number, because the mean of its divisors is an integer number (504319660).

Almost surely, 2^2011310023 is an apocalyptic number.

2011310023 is a deficient number, since it is larger than the sum of its proper divisors (5968617).

2011310023 is an equidigital number, since it uses as much as digits as its factorization.

2011310023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5968616.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 2011310023 is about 44847.6311860504. The cubic root of 2011310023 is about 1262.2915431143.

Adding to 2011310023 its reverse (3200131102), we get a palindrome (5211441125).

The spelling of 2011310023 in words is "two billion, eleven million, three hundred ten thousand, twenty-three".