1320787713 has 8 divisors (see below), whose sum is σ = 2012628928. Its totient is φ = 754735824.

The previous prime is 1320787711. The next prime is 1320787733. The reversal of 1320787713 is 3177870231.

1320787713 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1320787713 - 2¹ = 1320787711 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1320787711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31447306 + ... + 31447347.

It is an arithmetic number, because the mean of its divisors is an integer number (251578616).

Almost surely, 2^1320787713 is an apocalyptic number.

It is an amenable number.

1320787713 is a deficient number, since it is larger than the sum of its proper divisors (691841215).

1320787713 is an equidigital number, since it uses as much as digits as its factorization.

1320787713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62894663.

The product of its (nonzero) digits is 49392, while the sum is 39.

The square root of 1320787713 is about 36342.6431757515. The cubic root of 1320787713 is about 1097.1794718146.

The spelling of 1320787713 in words is "one billion, three hundred twenty million, seven hundred eighty-seven thousand, seven hundred thirteen".