1320677357 has 2 divisors, whose sum is σ = 1320677358. Its totient is φ = 1320677356.

The previous prime is 1320677333. The next prime is 1320677387. The reversal of 1320677357 is 7537760231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1096007236 + 224670121 = 33106^2 + 14989^2 .

It is an emirp because it is prime and its reverse (7537760231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1320677357 - 2⁸ = 1320677101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1320677387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660338678 + 660338679.

It is an arithmetic number, because the mean of its divisors is an integer number (660338679).

Almost surely, 2^1320677357 is an apocalyptic number.

It is an amenable number.

1320677357 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320677357 is an equidigital number, since it uses as much as digits as its factorization.

1320677357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 185220, while the sum is 41.

The square root of 1320677357 is about 36341.1248725187. The cubic root of 1320677357 is about 1097.1489133559.

The spelling of 1320677357 in words is "one billion, three hundred twenty million, six hundred seventy-seven thousand, three hundred fifty-seven".