11990018317 has 2 divisors, whose sum is σ = 11990018318. Its totient is φ = 11990018316.

The previous prime is 11990018231. The next prime is 11990018321. The reversal of 11990018317 is 71381009911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8592177636 + 3397840681 = 92694^2 + 58291^2 .

It is a cyclic number.

It is not a de Polignac number, because 11990018317 - 2⁷ = 11990018189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11990018317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11990018357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5995009158 + 5995009159.

It is an arithmetic number, because the mean of its divisors is an integer number (5995009159).

Almost surely, 2^11990018317 is an apocalyptic number.

It is an amenable number.

11990018317 is a deficient number, since it is larger than the sum of its proper divisors (1).

11990018317 is an equidigital number, since it uses as much as digits as its factorization.

11990018317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 40.

The spelling of 11990018317 in words is "eleven billion, nine hundred ninety million, eighteen thousand, three hundred seventeen".