211334320 has 40 divisors (see below), whose sum is σ = 500633136. Its totient is φ = 82937088.

The previous prime is 211334303. The next prime is 211334329. The reversal of 211334320 is 23433112.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (211334329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20682 + ... + 29161.

Almost surely, 2^211334320 is an apocalyptic number.

211334320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211334320 is an abundant number, since it is smaller than the sum of its proper divisors (289298816).

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

211334320 is a wasteful number, since it uses less digits than its factorization.

211334320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49909 (or 49903 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 211334320 is about 14537.3422605372. The cubic root of 211334320 is about 595.6484421303.

Adding to 211334320 its reverse (23433112), we get a palindrome (234767432).

The spelling of 211334320 in words is "two hundred eleven million, three hundred thirty-four thousand, three hundred twenty".