211404311320 has 64 divisors (see below), whose sum is σ = 477386784000. Its totient is φ = 84255008640.

The previous prime is 211404311317. The next prime is 211404311341. The reversal of 211404311320 is 23113404112.

It is a junction number, because it is equal to n+sod(n) for n = 211404311291 and 211404311300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27786957 + ... + 27794563.

It is an arithmetic number, because the mean of its divisors is an integer number (7459168500).

Almost surely, 2^211404311320 is an apocalyptic number.

211404311320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211404311320 is an abundant number, since it is smaller than the sum of its proper divisors (265982472680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211404311320 is a wasteful number, since it uses less digits than its factorization.

211404311320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10048 (or 10044 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 211404311320 its reverse (23113404112), we get a palindrome (234517715432).

The spelling of 211404311320 in words is "two hundred eleven billion, four hundred four million, three hundred eleven thousand, three hundred twenty".