11311313222009 has 2 divisors, whose sum is σ = 11311313222010. Its totient is φ = 11311313222008.

The previous prime is 11311313221997. The next prime is 11311313222029. The reversal of 11311313222009 is 90022231311311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9009332418025 + 2301980803984 = 3001555^2 + 1517228^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11311313222009 is a prime.

It is not a weakly prime, because it can be changed into another prime (11311313222029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5655656611004 + 5655656611005.

It is an arithmetic number, because the mean of its divisors is an integer number (5655656611005).

Almost surely, 2^{11311313222009} is an apocalyptic number.

It is an amenable number.

11311313222009 is a deficient number, since it is larger than the sum of its proper divisors (1).

11311313222009 is an equidigital number, since it uses as much as digits as its factorization.

11311313222009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 29.

The spelling of 11311313222009 in words is "eleven trillion, three hundred eleven billion, three hundred thirteen million, two hundred twenty-two thousand, nine".