211320105 has 8 divisors (see below), whose sum is σ = 338112192. Its totient is φ = 112704048.

The previous prime is 211320091. The next prime is 211320107. The reversal of 211320105 is 501023112.

211320105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 211320105 - 2⁴ = 211320089 is a prime.

It is a super-2 number, since 2×211320105² = 89312373554422050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 14088007 = 211320105 / (2 + 1 + 1 + 3 + 2 + 0 + 1 + 0 + 5).

It is not an unprimeable number, because it can be changed into a prime (211320107) 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, 7043989 + ... + 7044018.

It is an arithmetic number, because the mean of its divisors is an integer number (42264024).

Almost surely, 2^211320105 is an apocalyptic number.

It is an amenable number.

211320105 is a deficient number, since it is larger than the sum of its proper divisors (126792087).

211320105 is a wasteful number, since it uses less digits than its factorization.

211320105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14088015.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 211320105 is about 14536.8533390139. The cubic root of 211320105 is about 595.6350867787.

Adding to 211320105 its reverse (501023112), we get a palindrome (712343217).

The spelling of 211320105 in words is "two hundred eleven million, three hundred twenty thousand, one hundred five".