1320020027 has 2 divisors, whose sum is σ = 1320020028. Its totient is φ = 1320020026.

The previous prime is 1320019993. The next prime is 1320020077. The reversal of 1320020027 is 7200200231.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1320020027 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1320019987 and 1320020014.

It is not a weakly prime, because it can be changed into another prime (1320020077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660010013 + 660010014.

It is an arithmetic number, because the mean of its divisors is an integer number (660010014).

Almost surely, 2^1320020027 is an apocalyptic number.

1320020027 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320020027 is an equidigital number, since it uses as much as digits as its factorization.

1320020027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 1320020027 is about 36332.0798606411. The cubic root of 1320020027 is about 1096.9668581464.

Adding to 1320020027 its reverse (7200200231), we get a palindrome (8520220258).

The spelling of 1320020027 in words is "one billion, three hundred twenty million, twenty thousand, twenty-seven".