213355111 has 4 divisors (see below), whose sum is σ = 215349192. Its totient is φ = 211361032.

The previous prime is 213355099. The next prime is 213355141. The reversal of 213355111 is 111553312.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213355111 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 (213355141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 996880 + ... + 997093.

It is an arithmetic number, because the mean of its divisors is an integer number (53837298).

Almost surely, 2^213355111 is an apocalyptic number.

213355111 is a deficient number, since it is larger than the sum of its proper divisors (1994081).

213355111 is a wasteful number, since it uses less digits than its factorization.

213355111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1994080.

The product of its digits is 450, while the sum is 22.

The square root of 213355111 is about 14606.6803552347. The cubic root of 213355111 is about 597.5409643780.

The spelling of 213355111 in words is "two hundred thirteen million, three hundred fifty-five thousand, one hundred eleven".