1321063 has 2 divisors, whose sum is σ = 1321064. Its totient is φ = 1321062.

The previous prime is 1321031. The next prime is 1321079. The reversal of 1321063 is 3601231.

It is an a-pointer prime, because the next prime (1321079) can be obtained adding 1321063 to its sum of digits (16).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1321063 - 2⁵ = 1321031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1321093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660531 + 660532.

It is an arithmetic number, because the mean of its divisors is an integer number (660532).

2^1321063 is an apocalyptic number.

1321063 is a deficient number, since it is larger than the sum of its proper divisors (1).

1321063 is an equidigital number, since it uses as much as digits as its factorization.

1321063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1321063 is about 1149.3750475802. The cubic root of 1321063 is about 109.7255693567.

Adding to 1321063 its reverse (3601231), we get a palindrome (4922294).

The spelling of 1321063 in words is "one million, three hundred twenty-one thousand, sixty-three".