211315019 has 4 divisors (see below), whose sum is σ = 211924344. Its totient is φ = 210705696.

The previous prime is 211314997. The next prime is 211315021. The reversal of 211315019 is 910513112.

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

It is a cyclic number.

It is not a de Polignac number, because 211315019 - 2¹⁶ = 211249483 is a prime.

It is a super-2 number, since 2×211315019² = 89308074509940722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211314985 and 211315003.

It is not an unprimeable number, because it can be changed into a prime (211315519) 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 3 ways as a sum of consecutive naturals, for example, 304142 + ... + 304835.

It is an arithmetic number, because the mean of its divisors is an integer number (52981086).

Almost surely, 2^211315019 is an apocalyptic number.

211315019 is a deficient number, since it is larger than the sum of its proper divisors (609325).

211315019 is an equidigital number, since it uses as much as digits as its factorization.

211315019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609324.

The product of its (nonzero) digits is 270, while the sum is 23.

The square root of 211315019 is about 14536.6784032667. The cubic root of 211315019 is about 595.6303082077.

The spelling of 211315019 in words is "two hundred eleven million, three hundred fifteen thousand, nineteen".