1321304133 has 8 divisors (see below), whose sum is σ = 1763143200. Its totient is φ = 880167248.

The previous prime is 1321304113. The next prime is 1321304189. The reversal of 1321304133 is 3314031231.

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 1321304133 - 2⁸ = 1321303877 is a prime.

It is a super-2 number, since 2×1321304133² = 3491689223765763378, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321304113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171138 + ... + 178691.

It is an arithmetic number, because the mean of its divisors is an integer number (220392900).

Almost surely, 2^1321304133 is an apocalyptic number.

It is an amenable number.

1321304133 is a deficient number, since it is larger than the sum of its proper divisors (441839067).

1321304133 is a wasteful number, since it uses less digits than its factorization.

1321304133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351091.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 1321304133 is about 36349.7473581317. The cubic root of 1321304133 is about 1097.3224500254.

Adding to 1321304133 its reverse (3314031231), we get a palindrome (4635335364).

The spelling of 1321304133 in words is "one billion, three hundred twenty-one million, three hundred four thousand, one hundred thirty-three".