1311662099 has 16 divisors (see below), whose sum is σ = 1494512640. Its totient is φ = 1140507360.

The previous prime is 1311662071. The next prime is 1311662117. The reversal of 1311662099 is 9902661131.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1311662099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1311662399) 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 15 ways as a sum of consecutive naturals, for example, 3299 + ... + 51324.

It is an arithmetic number, because the mean of its divisors is an integer number (93407040).

Almost surely, 2^1311662099 is an apocalyptic number.

1311662099 is a deficient number, since it is larger than the sum of its proper divisors (182850541).

1311662099 is a wasteful number, since it uses less digits than its factorization.

1311662099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54730.

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 1311662099 is about 36216.8758868017. The cubic root of 1311662099 is about 1094.6467446776.

The spelling of 1311662099 in words is "one billion, three hundred eleven million, six hundred sixty-two thousand, ninety-nine".