1211343134233 has 16 divisors (see below), whose sum is σ = 1217222596800. Its totient is φ = 1205481372480.

The previous prime is 1211343134231. The next prime is 1211343134251. The reversal of 1211343134233 is 3324313431121.

It is a cyclic number.

It is not a de Polignac number, because 1211343134233 - 2¹ = 1211343134231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1211343134195 and 1211343134204.

It is not an unprimeable number, because it can be changed into a prime (1211343134231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 585471723 + ... + 585473791.

It is an arithmetic number, because the mean of its divisors is an integer number (76076412300).

Almost surely, 2^{1211343134233} is an apocalyptic number.

It is an amenable number.

1211343134233 is a deficient number, since it is larger than the sum of its proper divisors (5879462567).

1211343134233 is a wasteful number, since it uses less digits than its factorization.

1211343134233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5112.

The product of its digits is 15552, while the sum is 31.

Adding to 1211343134233 its reverse (3324313431121), we get a palindrome (4535656565354).

The spelling of 1211343134233 in words is "one trillion, two hundred eleven billion, three hundred forty-three million, one hundred thirty-four thousand, two hundred thirty-three".