211320700 has 18 divisors (see below), whose sum is σ = 458566136. Its totient is φ = 84528240.

The previous prime is 211320691. The next prime is 211320701. The reversal of 211320700 is 7023112.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211320701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1056504 + ... + 1056703.

Almost surely, 2^211320700 is an apocalyptic number.

211320700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211320700 is an abundant number, since it is smaller than the sum of its proper divisors (247245436).

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

211320700 is a wasteful number, since it uses less digits than its factorization.

211320700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2113221 (or 2113214 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 211320700 is about 14536.8738042263. The cubic root of 211320700 is about 595.6356458082.

Adding to 211320700 its reverse (7023112), we get a palindrome (218343812).

The spelling of 211320700 in words is "two hundred eleven million, three hundred twenty thousand, seven hundred".