1320218427 has 16 divisors (see below), whose sum is σ = 1922291712. Its totient is φ = 799309920.

The previous prime is 1320218413. The next prime is 1320218429. The reversal of 1320218427 is 7248120231.

It is not a de Polignac number, because 1320218427 - 2¹⁴ = 1320202043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1320218394 and 1320218403.

It is not an unprimeable number, because it can be changed into a prime (1320218429) 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 15 ways as a sum of consecutive naturals, for example, 12838 + ... + 52964.

It is an arithmetic number, because the mean of its divisors is an integer number (120143232).

Almost surely, 2^1320218427 is an apocalyptic number.

1320218427 is a deficient number, since it is larger than the sum of its proper divisors (602073285).

1320218427 is a wasteful number, since it uses less digits than its factorization.

1320218427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41138.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 1320218427 is about 36334.8101274797. The cubic root of 1320218427 is about 1097.0218137070.

Adding to 1320218427 its reverse (7248120231), we get a palindrome (8568338658).

The spelling of 1320218427 in words is "one billion, three hundred twenty million, two hundred eighteen thousand, four hundred twenty-seven".