211311304442 has 8 divisors (see below), whose sum is σ = 362247950496. Its totient is φ = 90561987612.

The previous prime is 211311304417. The next prime is 211311304493. The reversal of 211311304442 is 244403113112.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7546832288 + ... + 7546832315.

It is an arithmetic number, because the mean of its divisors is an integer number (45280993812).

Almost surely, 2^211311304442 is an apocalyptic number.

211311304442 is a deficient number, since it is larger than the sum of its proper divisors (150936646054).

211311304442 is a wasteful number, since it uses less digits than its factorization.

211311304442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15093664612.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 211311304442 its reverse (244403113112), we get a palindrome (455714417554).

The spelling of 211311304442 in words is "two hundred eleven billion, three hundred eleven million, three hundred four thousand, four hundred forty-two".