1211433223241 has 4 divisors (see below), whose sum is σ = 1211883071172. Its totient is φ = 1210983375312.

The previous prime is 1211433223223. The next prime is 1211433223283. The reversal of 1211433223241 is 1423223341121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 223725216016 + 987708007225 = 472996^2 + 993835^2 .

It is a cyclic number.

It is not a de Polignac number, because 1211433223241 - 2⁶ = 1211433223177 is a prime.

It is a super-3 number, since 3×1211433223241³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1211433223141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224919926 + ... + 224925311.

It is an arithmetic number, because the mean of its divisors is an integer number (302970767793).

Almost surely, 2^{1211433223241} is an apocalyptic number.

It is an amenable number.

1211433223241 is a deficient number, since it is larger than the sum of its proper divisors (449847931).

1211433223241 is an equidigital number, since it uses as much as digits as its factorization.

1211433223241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449847930.

The product of its digits is 6912, while the sum is 29.

Adding to 1211433223241 its reverse (1423223341121), we get a palindrome (2634656564362).

The spelling of 1211433223241 in words is "one trillion, two hundred eleven billion, four hundred thirty-three million, two hundred twenty-three thousand, two hundred forty-one".