1421421303 has 8 divisors (see below), whose sum is σ = 1895611248. Its totient is φ = 947422784.

The previous prime is 1421421263. The next prime is 1421421307. The reversal of 1421421303 is 3031241241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1421421303 - 2¹³ = 1421413111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1421421303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421421307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29526 + ... + 60947.

It is an arithmetic number, because the mean of its divisors is an integer number (236951406).

Almost surely, 2^1421421303 is an apocalyptic number.

1421421303 is a deficient number, since it is larger than the sum of its proper divisors (474189945).

1421421303 is an equidigital number, since it uses as much as digits as its factorization.

1421421303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95713.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1421421303 is about 37701.7413788806. The cubic root of 1421421303 is about 1124.3657469816.

Adding to 1421421303 its reverse (3031241241), we get a palindrome (4452662544).

The spelling of 1421421303 in words is "one billion, four hundred twenty-one million, four hundred twenty-one thousand, three hundred three".