211403320442 has 8 divisors (see below), whose sum is σ = 321118968000. Its totient is φ = 104363664444.

The previous prime is 211403320411. The next prime is 211403320451. The reversal of 211403320442 is 244023304112.

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, 668997692 + ... + 668998007.

It is an arithmetic number, because the mean of its divisors is an integer number (40139871000).

Almost surely, 2^211403320442 is an apocalyptic number.

211403320442 is a deficient number, since it is larger than the sum of its proper divisors (109715647558).

211403320442 is a wasteful number, since it uses less digits than its factorization.

211403320442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1337995780.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 211403320442 its reverse (244023304112), we get a palindrome (455426624554).

The spelling of 211403320442 in words is "two hundred eleven billion, four hundred three million, three hundred twenty thousand, four hundred forty-two".