1421043303 has 4 divisors (see below), whose sum is σ = 1894724408. Its totient is φ = 947362200.

The previous prime is 1421043301. The next prime is 1421043359. The reversal of 1421043303 is 3033401241.

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

It is not a de Polignac number, because 1421043303 - 2¹ = 1421043301 is a prime.

It is a super-2 number, since 2×1421043303² = 4038728138002299618, which 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 1421043303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421043301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 236840548 + ... + 236840553.

It is an arithmetic number, because the mean of its divisors is an integer number (473681102).

Almost surely, 2^1421043303 is an apocalyptic number.

1421043303 is a deficient number, since it is larger than the sum of its proper divisors (473681105).

1421043303 is an equidigital number, since it uses as much as digits as its factorization.

1421043303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473681104.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1421043303 is about 37696.7280145108. The cubic root of 1421043303 is about 1124.2660702398.

Adding to 1421043303 its reverse (3033401241), we get a palindrome (4454444544).

The spelling of 1421043303 in words is "one billion, four hundred twenty-one million, forty-three thousand, three hundred three".