211380118 has 4 divisors (see below), whose sum is σ = 317070180. Its totient is φ = 105690058.

The previous prime is 211380107. The next prime is 211380119. The reversal of 211380118 is 811083112.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 211380092 and 211380101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211380119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52845028 + ... + 52845031.

It is an arithmetic number, because the mean of its divisors is an integer number (79267545).

Almost surely, 2^211380118 is an apocalyptic number.

211380118 is a deficient number, since it is larger than the sum of its proper divisors (105690062).

211380118 is a wasteful number, since it uses less digits than its factorization.

211380118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105690061.

The product of its (nonzero) digits is 384, while the sum is 25.

The square root of 211380118 is about 14538.9173599687. The cubic root of 211380118 is about 595.6914664358.

The spelling of 211380118 in words is "two hundred eleven million, three hundred eighty thousand, one hundred eighteen".