2011323023243 has 2 divisors, whose sum is σ = 2011323023244. Its totient is φ = 2011323023242.

The previous prime is 2011323023201. The next prime is 2011323023261. The reversal of 2011323023243 is 3423203231102.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2011323023243 - 2¹⁴ = 2011323006859 is a prime.

It is not a weakly prime, because it can be changed into another prime (2011323023273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005661511621 + 1005661511622.

It is an arithmetic number, because the mean of its divisors is an integer number (1005661511622).

Almost surely, 2^{2011323023243} is an apocalyptic number.

2011323023243 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011323023243 is an equidigital number, since it uses as much as digits as its factorization.

2011323023243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 2011323023243 its reverse (3423203231102), we get a palindrome (5434526254345).

The spelling of 2011323023243 in words is "two trillion, eleven billion, three hundred twenty-three million, twenty-three thousand, two hundred forty-three".