213073111 has 4 divisors (see below), whose sum is σ = 214380472. Its totient is φ = 211765752.

The previous prime is 213073103. The next prime is 213073117. The reversal of 213073111 is 111370312.

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 213073111 - 2³ = 213073103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213073117) 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 3 ways as a sum of consecutive naturals, for example, 653436 + ... + 653761.

It is an arithmetic number, because the mean of its divisors is an integer number (53595118).

Almost surely, 2^213073111 is an apocalyptic number.

213073111 is a deficient number, since it is larger than the sum of its proper divisors (1307361).

213073111 is a wasteful number, since it uses less digits than its factorization.

213073111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307360.

The product of its (nonzero) digits is 126, while the sum is 19.

The square root of 213073111 is about 14597.0240460171. The cubic root of 213073111 is about 597.2775836910.

The spelling of 213073111 in words is "two hundred thirteen million, seventy-three thousand, one hundred eleven".