1421432311 has 12 divisors (see below), whose sum is σ = 1544620168. Its totient is φ = 1300328064.

The previous prime is 1421432297. The next prime is 1421432323. The reversal of 1421432311 is 1132341241.

It is not a de Polignac number, because 1421432311 - 2¹⁹ = 1420908023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421432371) 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 in 11 ways as a sum of consecutive naturals, for example, 161716 + ... + 170278.

Almost surely, 2^1421432311 is an apocalyptic number.

1421432311 is a deficient number, since it is larger than the sum of its proper divisors (123187857).

1421432311 is an equidigital number, since it uses as much as digits as its factorization.

1421432311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8802 (or 8689 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

The square root of 1421432311 is about 37701.8873665497. The cubic root of 1421432311 is about 1124.3686494722.

Adding to 1421432311 its reverse (1132341241), we get a palindrome (2553773552).

The spelling of 1421432311 in words is "one billion, four hundred twenty-one million, four hundred thirty-two thousand, three hundred eleven".