1421304056303 has 4 divisors (see below), whose sum is σ = 1504910177280. Its totient is φ = 1337697935328.

The previous prime is 1421304056299. The next prime is 1421304056309. The reversal of 1421304056303 is 3036504031241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1421304056303 - 2² = 1421304056299 is a prime.

It is a super-2 number, since 2×1421304056303² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1421304056303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421304056309) 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 in 3 ways as a sum of consecutive naturals, for example, 41803060463 + ... + 41803060496.

It is an arithmetic number, because the mean of its divisors is an integer number (376227544320).

Almost surely, 2^{1421304056303} is an apocalyptic number.

1421304056303 is a deficient number, since it is larger than the sum of its proper divisors (83606120977).

1421304056303 is an equidigital number, since it uses as much as digits as its factorization.

1421304056303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83606120976.

The product of its (nonzero) digits is 25920, while the sum is 32.

Adding to 1421304056303 its reverse (3036504031241), we get a palindrome (4457808087544).

The spelling of 1421304056303 in words is "one trillion, four hundred twenty-one billion, three hundred four million, fifty-six thousand, three hundred three".