1320569071 has 2 divisors, whose sum is σ = 1320569072. Its totient is φ = 1320569070.

The previous prime is 1320569023. The next prime is 1320569101. The reversal of 1320569071 is 1709650231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1320569071 - 2²¹ = 1318471919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1320569021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660284535 + 660284536.

It is an arithmetic number, because the mean of its divisors is an integer number (660284536).

Almost surely, 2^1320569071 is an apocalyptic number.

1320569071 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320569071 is an equidigital number, since it uses as much as digits as its factorization.

1320569071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 1320569071 is about 36339.6349871597. The cubic root of 1320569071 is about 1097.1189264420.

The spelling of 1320569071 in words is "one billion, three hundred twenty million, five hundred sixty-nine thousand, seventy-one".