1264320011 has 2 divisors, whose sum is σ = 1264320012. Its totient is φ = 1264320010.

The previous prime is 1264319963. The next prime is 1264320017. The reversal of 1264320011 is 1100234621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1264320011 - 2¹⁴ = 1264303627 is a prime.

It is not a weakly prime, because it can be changed into another prime (1264320017) 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 as a sum of consecutive naturals, namely, 632160005 + 632160006.

It is an arithmetic number, because the mean of its divisors is an integer number (632160006).

Almost surely, 2^1264320011 is an apocalyptic number.

1264320011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1264320011 is an equidigital number, since it uses as much as digits as its factorization.

1264320011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1264320011 is about 35557.2778907497. The cubic root of 1264320011 is about 1081.3152731219.

Adding to 1264320011 its reverse (1100234621), we get a palindrome (2364554632).

The spelling of 1264320011 in words is "one billion, two hundred sixty-four million, three hundred twenty thousand, eleven".