1331321463 has 6 divisors (see below), whose sum is σ = 1923019904. Its totient is φ = 887547636.

The previous prime is 1331321449. The next prime is 1331321471. The reversal of 1331321463 is 3641231331.

1331321463 is a `hidden beast` number, since 1 + 331 + 321 + 4 + 6 + 3 = 666.

It is not a de Polignac number, because 1331321463 - 2⁴ = 1331321447 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 (1331321413) 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 5 ways as a sum of consecutive naturals, for example, 73962295 + ... + 73962312.

Almost surely, 2^1331321463 is an apocalyptic number.

1331321463 is a deficient number, since it is larger than the sum of its proper divisors (591698441).

1331321463 is a wasteful number, since it uses less digits than its factorization.

1331321463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147924613 (or 147924610 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

The square root of 1331321463 is about 36487.2780979892. The cubic root of 1331321463 is about 1100.0885501718.

Adding to 1331321463 its reverse (3641231331), we get a palindrome (4972552794).

The spelling of 1331321463 in words is "one billion, three hundred thirty-one million, three hundred twenty-one thousand, four hundred sixty-three".