213394111 has 32 divisors (see below), whose sum is σ = 269004800. Its totient is φ = 165162240.

The previous prime is 213394109. The next prime is 213394123. The reversal of 213394111 is 111493312.

It is a cyclic number.

It is not a de Polignac number, because 213394111 - 2¹ = 213394109 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 (213394211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 300625 + ... + 301333.

It is an arithmetic number, because the mean of its divisors is an integer number (8406400).

Almost surely, 2^213394111 is an apocalyptic number.

213394111 is a deficient number, since it is larger than the sum of its proper divisors (55610689).

213394111 is a wasteful number, since it uses less digits than its factorization.

213394111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839.

The product of its digits is 648, while the sum is 25.

The square root of 213394111 is about 14608.0152998277. The cubic root of 213394111 is about 597.5773710956.

The spelling of 213394111 in words is "two hundred thirteen million, three hundred ninety-four thousand, one hundred eleven".