1320110971 has 2 divisors, whose sum is σ = 1320110972. Its totient is φ = 1320110970.

The previous prime is 1320110963. The next prime is 1320111031. The reversal of 1320110971 is 1790110231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1320110971 - 2³ = 1320110963 is a prime.

It is not a weakly prime, because it can be changed into another prime (1320110941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660055485 + 660055486.

It is an arithmetic number, because the mean of its divisors is an integer number (660055486).

Almost surely, 2^1320110971 is an apocalyptic number.

1320110971 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320110971 is an equidigital number, since it uses as much as digits as its factorization.

1320110971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378, while the sum is 25.

The square root of 1320110971 is about 36333.3314051987. The cubic root of 1320110971 is about 1096.9920497498.

The spelling of 1320110971 in words is "one billion, three hundred twenty million, one hundred ten thousand, nine hundred seventy-one".