1326120779 has 2 divisors, whose sum is σ = 1326120780. Its totient is φ = 1326120778.

The previous prime is 1326120739. The next prime is 1326120799. The reversal of 1326120779 is 9770216231.

It is a strong prime.

It is an emirp because it is prime and its reverse (9770216231) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1326120779 is a prime.

It is a super-3 number, since 3×1326120779³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1326120739) 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, 663060389 + 663060390.

It is an arithmetic number, because the mean of its divisors is an integer number (663060390).

Almost surely, 2^1326120779 is an apocalyptic number.

1326120779 is a deficient number, since it is larger than the sum of its proper divisors (1).

1326120779 is an equidigital number, since it uses as much as digits as its factorization.

1326120779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 1326120779 is about 36415.9412757655. The cubic root of 1326120779 is about 1098.6542161694.

The spelling of 1326120779 in words is "one billion, three hundred twenty-six million, one hundred twenty thousand, seven hundred seventy-nine".