213011005 has 16 divisors (see below), whose sum is σ = 260838144. Its totient is φ = 166956160.

The previous prime is 213010997. The next prime is 213011011. The reversal of 213011005 is 500110312.

213011005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 213011005 - 2³ = 213010997 is a prime.

It is a super-2 number, since 2×213011005² = 90747376502220050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57489 + ... + 61081.

It is an arithmetic number, because the mean of its divisors is an integer number (16302384).

Almost surely, 2^213011005 is an apocalyptic number.

It is an amenable number.

213011005 is a deficient number, since it is larger than the sum of its proper divisors (47827139).

213011005 is a wasteful number, since it uses less digits than its factorization.

213011005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3836.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 213011005 is about 14594.8965395442. The cubic root of 213011005 is about 597.2195470761.

Adding to 213011005 its reverse (500110312), we get a palindrome (713121317).

The spelling of 213011005 in words is "two hundred thirteen million, eleven thousand, five".