1311033122211 has 16 divisors (see below), whose sum is σ = 1789801453440. Its totient is φ = 853168552320.

The previous prime is 1311033122197. The next prime is 1311033122219. The reversal of 1311033122211 is 1122213301131.

It is not a de Polignac number, because 1311033122211 - 2¹⁰ = 1311033121187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1311033122219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2929830 + ... + 3347531.

It is an arithmetic number, because the mean of its divisors is an integer number (111862590840).

Almost surely, 2^{1311033122211} is an apocalyptic number.

1311033122211 is a deficient number, since it is larger than the sum of its proper divisors (478768331229).

1311033122211 is a wasteful number, since it uses less digits than its factorization.

1311033122211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6279026.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1311033122211 its reverse (1122213301131), we get a palindrome (2433246423342).

The spelling of 1311033122211 in words is "one trillion, three hundred eleven billion, thirty-three million, one hundred twenty-two thousand, two hundred eleven".