211356640042304 has 28 divisors (see below), whose sum is σ = 419470417344000. Its totient is φ = 105663306538368.

The previous prime is 211356640042243. The next prime is 211356640042321. The reversal of 211356640042304 is 403240046653112.

It is a congruent number.

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, 234131654 + ... + 235032645.

Almost surely, 2^{211356640042304} is an apocalyptic number.

It is an amenable number.

211356640042304 is a deficient number, since it is larger than the sum of its proper divisors (208113777301696).

211356640042304 is an equidigital number, since it uses as much as digits as its factorization.

211356640042304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469171350 (or 469171340 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 41.

Adding to 211356640042304 its reverse (403240046653112), we get a palindrome (614596686695416).

The spelling of 211356640042304 in words is "two hundred eleven trillion, three hundred fifty-six billion, six hundred forty million, forty-two thousand, three hundred four".