211323144442 has 8 divisors (see below), whose sum is σ = 320062238496. Its totient is φ = 104635731612.

The previous prime is 211323144427. The next prime is 211323144443. The reversal of 211323144442 is 244441323112.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (211323144443) 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, 512920048 + ... + 512920459.

It is an arithmetic number, because the mean of its divisors is an integer number (40007779812).

Almost surely, 2^211323144442 is an apocalyptic number.

211323144442 is a deficient number, since it is larger than the sum of its proper divisors (108739094054).

211323144442 is a wasteful number, since it uses less digits than its factorization.

211323144442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025840612.

The product of its digits is 18432, while the sum is 31.

Adding to 211323144442 its reverse (244441323112), we get a palindrome (455764467554).

The spelling of 211323144442 in words is "two hundred eleven billion, three hundred twenty-three million, one hundred forty-four thousand, four hundred forty-two".