1321443134 has 16 divisors (see below), whose sum is σ = 2163836160. Its totient is φ = 600246360.

The previous prime is 1321443121. The next prime is 1321443143. The reversal of 1321443134 is 4313441231.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 13787 + ... + 53225.

It is an arithmetic number, because the mean of its divisors is an integer number (135239760).

Almost surely, 2^1321443134 is an apocalyptic number.

1321443134 is a deficient number, since it is larger than the sum of its proper divisors (842393026).

1321443134 is a wasteful number, since it uses less digits than its factorization.

1321443134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40975.

The product of its digits is 3456, while the sum is 26.

The square root of 1321443134 is about 36351.6593018806. The cubic root of 1321443134 is about 1097.3609280628.

Adding to 1321443134 its reverse (4313441231), we get a palindrome (5634884365).

The spelling of 1321443134 in words is "one billion, three hundred twenty-one million, four hundred forty-three thousand, one hundred thirty-four".