1311680801 has 2 divisors, whose sum is σ = 1311680802. Its totient is φ = 1311680800.

The previous prime is 1311680791. The next prime is 1311680803. The reversal of 1311680801 is 1080861131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 733326400 + 578354401 = 27080^2 + 24049^2 .

It is a cyclic number.

It is not a de Polignac number, because 1311680801 - 2⁶ = 1311680737 is a prime.

Together with 1311680803, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1311680803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655840400 + 655840401.

It is an arithmetic number, because the mean of its divisors is an integer number (655840401).

Almost surely, 2^1311680801 is an apocalyptic number.

It is an amenable number.

1311680801 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311680801 is an equidigital number, since it uses as much as digits as its factorization.

1311680801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 29.

The square root of 1311680801 is about 36217.1340804322. The cubic root of 1311680801 is about 1094.6519472335.

The spelling of 1311680801 in words is "one billion, three hundred eleven million, six hundred eighty thousand, eight hundred one".