1212303443443 has 2 divisors, whose sum is σ = 1212303443444. Its totient is φ = 1212303443442.

The previous prime is 1212303443423. The next prime is 1212303443503. The reversal of 1212303443443 is 3443443032121.

It is a weak prime.

It is an emirp because it is prime and its reverse (3443443032121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1212303443443 - 2¹³ = 1212303435251 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1212303443399 and 1212303443408.

It is not a weakly prime, because it can be changed into another prime (1212303443423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606151721721 + 606151721722.

It is an arithmetic number, because the mean of its divisors is an integer number (606151721722).

Almost surely, 2^{1212303443443} is an apocalyptic number.

1212303443443 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212303443443 is an equidigital number, since it uses as much as digits as its factorization.

1212303443443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 34.

Adding to 1212303443443 its reverse (3443443032121), we get a palindrome (4655746475564).

The spelling of 1212303443443 in words is "one trillion, two hundred twelve billion, three hundred three million, four hundred forty-three thousand, four hundred forty-three".