11312013211 has 2 divisors, whose sum is σ = 11312013212. Its totient is φ = 11312013210.

The previous prime is 11312013187. The next prime is 11312013227. The reversal of 11312013211 is 11231021311.

It is a happy number.

It is an a-pointer prime, because the next prime (11312013227) can be obtained adding 11312013211 to its sum of digits (16).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11312013211 - 2²⁷ = 11177795483 is a prime.

It is not a weakly prime, because it can be changed into another prime (11312013241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5656006605 + 5656006606.

It is an arithmetic number, because the mean of its divisors is an integer number (5656006606).

Almost surely, 2^11312013211 is an apocalyptic number.

11312013211 is a deficient number, since it is larger than the sum of its proper divisors (1).

11312013211 is an equidigital number, since it uses as much as digits as its factorization.

11312013211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 11312013211 its reverse (11231021311), we get a palindrome (22543034522).

The spelling of 11312013211 in words is "eleven billion, three hundred twelve million, thirteen thousand, two hundred eleven".