1421244323243 has 2 divisors, whose sum is σ = 1421244323244. Its totient is φ = 1421244323242.

The previous prime is 1421244323227. The next prime is 1421244323299. The reversal of 1421244323243 is 3423234421241.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (3423234421241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1421244323243 - 2⁴ = 1421244323227 is a prime.

It is not a weakly prime, because it can be changed into another prime (1421244325243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710622161621 + 710622161622.

It is an arithmetic number, because the mean of its divisors is an integer number (710622161622).

Almost surely, 2^{1421244323243} is an apocalyptic number.

1421244323243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421244323243 is an equidigital number, since it uses as much as digits as its factorization.

1421244323243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 110592, while the sum is 35.

Adding to 1421244323243 its reverse (3423234421241), we get a palindrome (4844478744484).

The spelling of 1421244323243 in words is "one trillion, four hundred twenty-one billion, two hundred forty-four million, three hundred twenty-three thousand, two hundred forty-three".