11311042229 has 2 divisors, whose sum is σ = 11311042230. Its totient is φ = 11311042228.

The previous prime is 11311042219. The next prime is 11311042271. The reversal of 11311042229 is 92224011311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10042044100 + 1268998129 = 100210^2 + 35623^2 .

It is an emirp because it is prime and its reverse (92224011311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11311042229 - 2⁴ = 11311042213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11311042198 and 11311042207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11311042219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5655521114 + 5655521115.

It is an arithmetic number, because the mean of its divisors is an integer number (5655521115).

Almost surely, 2^11311042229 is an apocalyptic number.

It is an amenable number.

11311042229 is a deficient number, since it is larger than the sum of its proper divisors (1).

11311042229 is an equidigital number, since it uses as much as digits as its factorization.

11311042229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 11311042229 in words is "eleven billion, three hundred eleven million, forty-two thousand, two hundred twenty-nine".