213443331441 has 4 divisors (see below), whose sum is σ = 284591108592. Its totient is φ = 142295554292.

The previous prime is 213443331373. The next prime is 213443331487. The reversal of 213443331441 is 144133344312.

213443331441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 213443331441 - 2¹⁰ = 213443330417 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (213443332441) 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 3 ways as a sum of consecutive naturals, for example, 35573888571 + ... + 35573888576.

It is an arithmetic number, because the mean of its divisors is an integer number (71147777148).

Almost surely, 2^213443331441 is an apocalyptic number.

It is an amenable number.

213443331441 is a deficient number, since it is larger than the sum of its proper divisors (71147777151).

213443331441 is an equidigital number, since it uses as much as digits as its factorization.

213443331441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71147777150.

The product of its digits is 41472, while the sum is 33.

Adding to 213443331441 its reverse (144133344312), we get a palindrome (357576675753).

The spelling of 213443331441 in words is "two hundred thirteen billion, four hundred forty-three million, three hundred thirty-one thousand, four hundred forty-one".