2011013243 has 2 divisors, whose sum is σ = 2011013244. Its totient is φ = 2011013242.

The previous prime is 2011013231. The next prime is 2011013287. The reversal of 2011013243 is 3423101102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2011013243 - 2⁸ = 2011012987 is a prime.

It is not a weakly prime, because it can be changed into another prime (2011013743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005506621 + 1005506622.

It is an arithmetic number, because the mean of its divisors is an integer number (1005506622).

Almost surely, 2^2011013243 is an apocalyptic number.

2011013243 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011013243 is an equidigital number, since it uses as much as digits as its factorization.

2011013243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2011013243 is about 44844.3223050589. The cubic root of 2011013243 is about 1262.2294540103.

Adding to 2011013243 its reverse (3423101102), we get a palindrome (5434114345).

The spelling of 2011013243 in words is "two billion, eleven million, thirteen thousand, two hundred forty-three".