1311234233211 has 192 divisors, whose sum is σ = 2431028920320. Its totient is φ = 663693004800.

The previous prime is 1311234233209. The next prime is 1311234233213. The reversal of 1311234233211 is 1123324321131.

1311234233211 is a `hidden beast` number, since 1 + 3 + 1 + 1 + 23 + 423 + 3 + 211 = 666.

It is an interprime number because it is at equal distance from previous prime (1311234233209) and next prime (1311234233213).

It is not a de Polignac number, because 1311234233211 - 2¹ = 1311234233209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1311234233213) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1139212486 + ... + 1139213636.

It is an arithmetic number, because the mean of its divisors is an integer number (12661608960).

Almost surely, 2^{1311234233211} is an apocalyptic number.

1311234233211 is a deficient number, since it is larger than the sum of its proper divisors (1119794687109).

1311234233211 is a wasteful number, since it uses less digits than its factorization.

1311234233211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2106 (or 2103 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

Adding to 1311234233211 its reverse (1123324321131), we get a palindrome (2434558554342).

The spelling of 1311234233211 in words is "one trillion, three hundred eleven billion, two hundred thirty-four million, two hundred thirty-three thousand, two hundred eleven".