1321033144 has 32 divisors (see below), whose sum is σ = 2636005680. Its totient is φ = 618494464.

The previous prime is 1321033123. The next prime is 1321033151. The reversal of 1321033144 is 4413301231.

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, 2139 + ... + 51445.

Almost surely, 2^1321033144 is an apocalyptic number.

It is an amenable number.

1321033144 is a deficient number, since it is larger than the sum of its proper divisors (1314972536).

1321033144 is a wasteful number, since it uses less digits than its factorization.

1321033144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49527 (or 49523 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1321033144 is about 36346.0196445223. The cubic root of 1321033144 is about 1097.2474275187.

Adding to 1321033144 its reverse (4413301231), we get a palindrome (5734334375).

The spelling of 1321033144 in words is "one billion, three hundred twenty-one million, thirty-three thousand, one hundred forty-four".