1320427363 has 4 divisors (see below), whose sum is σ = 1389923560. Its totient is φ = 1250931168.

The previous prime is 1320427351. The next prime is 1320427373. The reversal of 1320427363 is 3637240231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1320427363 - 2⁹ = 1320426851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1320427313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34748070 + ... + 34748107.

It is an arithmetic number, because the mean of its divisors is an integer number (347480890).

Almost surely, 2^1320427363 is an apocalyptic number.

1320427363 is a deficient number, since it is larger than the sum of its proper divisors (69496197).

1320427363 is an equidigital number, since it uses as much as digits as its factorization.

1320427363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69496196.

The product of its (nonzero) digits is 18144, while the sum is 31.

The square root of 1320427363 is about 36337.6851629269. The cubic root of 1320427363 is about 1097.0796817221.

Adding to 1320427363 its reverse (3637240231), we get a palindrome (4957667594).

The spelling of 1320427363 in words is "one billion, three hundred twenty million, four hundred twenty-seven thousand, three hundred sixty-three".