211321314 has 24 divisors (see below), whose sum is σ = 460427760. Its totient is φ = 70045848.

The previous prime is 211321291. The next prime is 211321321. The reversal of 211321314 is 413123112.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29572 + ... + 36015.

It is an arithmetic number, because the mean of its divisors is an integer number (19184490).

Almost surely, 2^211321314 is an apocalyptic number.

211321314 is an abundant number, since it is smaller than the sum of its proper divisors (249106446).

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

211321314 is a wasteful number, since it uses less digits than its factorization.

211321314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65774 (or 65771 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 211321314 is about 14536.8949229194. The cubic root of 211321314 is about 595.6362226880.

Adding to 211321314 its reverse (413123112), we get a palindrome (624444426).

The spelling of 211321314 in words is "two hundred eleven million, three hundred twenty-one thousand, three hundred fourteen".