11222131313 has 2 divisors, whose sum is σ = 11222131314. Its totient is φ = 11222131312.

The previous prime is 11222131243. The next prime is 11222131343. The reversal of 11222131313 is 31313122211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9214464064 + 2007667249 = 95992^2 + 44807^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11222131313 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (11222131343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5611065656 + 5611065657.

It is an arithmetic number, because the mean of its divisors is an integer number (5611065657).

Almost surely, 2^11222131313 is an apocalyptic number.

It is an amenable number.

11222131313 is a deficient number, since it is larger than the sum of its proper divisors (1).

11222131313 is an equidigital number, since it uses as much as digits as its factorization.

11222131313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216, while the sum is 20.

Adding to 11222131313 its reverse (31313122211), we get a palindrome (42535253524).

The spelling of 11222131313 in words is "eleven billion, two hundred twenty-two million, one hundred thirty-one thousand, three hundred thirteen".