1421244420263 has 2 divisors, whose sum is σ = 1421244420264. Its totient is φ = 1421244420262.

The previous prime is 1421244420151. The next prime is 1421244420307. The reversal of 1421244420263 is 3620244421241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1421244420263 - 2¹⁶ = 1421244354727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1421244420863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710622210131 + 710622210132.

It is an arithmetic number, because the mean of its divisors is an integer number (710622210132).

Almost surely, 2^{1421244420263} is an apocalyptic number.

1421244420263 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421244420263 is an equidigital number, since it uses as much as digits as its factorization.

1421244420263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 73728, while the sum is 35.

The spelling of 1421244420263 in words is "one trillion, four hundred twenty-one billion, two hundred forty-four million, four hundred twenty thousand, two hundred sixty-three".