1321236067 has 2 divisors, whose sum is σ = 1321236068. Its totient is φ = 1321236066.

The previous prime is 1321236011. The next prime is 1321236101. The reversal of 1321236067 is 7606321231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1321236067 - 2⁷ = 1321235939 is a prime.

It is not a weakly prime, because it can be changed into another prime (1321236167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660618033 + 660618034.

It is an arithmetic number, because the mean of its divisors is an integer number (660618034).

Almost surely, 2^1321236067 is an apocalyptic number.

1321236067 is a deficient number, since it is larger than the sum of its proper divisors (1).

1321236067 is an equidigital number, since it uses as much as digits as its factorization.

1321236067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 1321236067 is about 36348.8110809693. The cubic root of 1321236067 is about 1097.3036071185.

Adding to 1321236067 its reverse (7606321231), we get a palindrome (8927557298).

The spelling of 1321236067 in words is "one billion, three hundred twenty-one million, two hundred thirty-six thousand, sixty-seven".