211116430 has 32 divisors (see below), whose sum is σ = 434926080. Its totient is φ = 72277920.

The previous prime is 211116427. The next prime is 211116439. The reversal of 211116430 is 34611112.

211116430 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 211116398 and 211116407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211116439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58375 + ... + 61885.

It is an arithmetic number, because the mean of its divisors is an integer number (13591440).

Almost surely, 2^211116430 is an apocalyptic number.

211116430 is an abundant number, since it is smaller than the sum of its proper divisors (223809650).

211116430 is a wasteful number, since it uses less digits than its factorization.

211116430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4384.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 211116430 is about 14529.8461795024. The cubic root of 211116430 is about 595.4436631675.

Adding to 211116430 its reverse (34611112), we get a palindrome (245727542).

The spelling of 211116430 in words is "two hundred eleven million, one hundred sixteen thousand, four hundred thirty".