1421321040263 has 2 divisors, whose sum is σ = 1421321040264. Its totient is φ = 1421321040262.

The previous prime is 1421321040199. The next prime is 1421321040329. The reversal of 1421321040263 is 3620401231241.

It is a weak prime.

It is an emirp because it is prime and its reverse (3620401231241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1421321040263 - 2⁶ = 1421321040199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1421321040863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710660520131 + 710660520132.

It is an arithmetic number, because the mean of its divisors is an integer number (710660520132).

Almost surely, 2^{1421321040263} is an apocalyptic number.

1421321040263 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421321040263 is an equidigital number, since it uses as much as digits as its factorization.

1421321040263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 29.

The spelling of 1421321040263 in words is "one trillion, four hundred twenty-one billion, three hundred twenty-one million, forty thousand, two hundred sixty-three".