1311705101 has 8 divisors (see below), whose sum is σ = 1514546880. Its totient is φ = 1112727168.

The previous prime is 1311705097. The next prime is 1311705121. The reversal of 1311705101 is 1015071131.

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

It is not a de Polignac number, because 1311705101 - 2² = 1311705097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311705121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 965231 + ... + 966588.

It is an arithmetic number, because the mean of its divisors is an integer number (189318360).

Almost surely, 2^1311705101 is an apocalyptic number.

It is an amenable number.

1311705101 is a deficient number, since it is larger than the sum of its proper divisors (202841779).

1311705101 is an equidigital number, since it uses as much as digits as its factorization.

1311705101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1931923.

The product of its (nonzero) digits is 105, while the sum is 20.

The square root of 1311705101 is about 36217.4695554507. The cubic root of 1311705101 is about 1094.6587069772.

Adding to 1311705101 its reverse (1015071131), we get a palindrome (2326776232).

The spelling of 1311705101 in words is "one billion, three hundred eleven million, seven hundred five thousand, one hundred one".