1321304463 has 6 divisors (see below), whose sum is σ = 1908550904. Its totient is φ = 880869636.

The previous prime is 1321304461. The next prime is 1321304489. The reversal of 1321304463 is 3644031231.

1321304463 is a `hidden beast` number, since 1 + 3 + 213 + 0 + 446 + 3 = 666.

It is not a de Polignac number, because 1321304463 - 2¹ = 1321304461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321304461) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73405795 + ... + 73405812.

Almost surely, 2^1321304463 is an apocalyptic number.

1321304463 is a deficient number, since it is larger than the sum of its proper divisors (587246441).

1321304463 is a wasteful number, since it uses less digits than its factorization.

1321304463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146811613 (or 146811610 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 1321304463 is about 36349.7518973651. The cubic root of 1321304463 is about 1097.3225413787.

Adding to 1321304463 its reverse (3644031231), we get a palindrome (4965335694).

The spelling of 1321304463 in words is "one billion, three hundred twenty-one million, three hundred four thousand, four hundred sixty-three".