2012312443 has 2 divisors, whose sum is σ = 2012312444. Its totient is φ = 2012312442.

The previous prime is 2012312441. The next prime is 2012312447. The reversal of 2012312443 is 3442132102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2012312443 - 2¹ = 2012312441 is a prime.

Together with 2012312441, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2012312441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006156221 + 1006156222.

It is an arithmetic number, because the mean of its divisors is an integer number (1006156222).

Almost surely, 2^2012312443 is an apocalyptic number.

2012312443 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012312443 is an equidigital number, since it uses as much as digits as its factorization.

2012312443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 2012312443 is about 44858.8056350144. The cubic root of 2012312443 is about 1262.5012134485.

Adding to 2012312443 its reverse (3442132102), we get a palindrome (5454444545).

The spelling of 2012312443 in words is "two billion, twelve million, three hundred twelve thousand, four hundred forty-three".