213434013 has 16 divisors (see below), whose sum is σ = 307472256. Its totient is φ = 130914240.

The previous prime is 213433999. The next prime is 213434017. The reversal of 213434013 is 310434312.

It is not a de Polignac number, because 213434013 - 2¹⁸ = 213171869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213434017) 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 15 ways as a sum of consecutive naturals, for example, 3331 + ... + 20927.

It is an arithmetic number, because the mean of its divisors is an integer number (19217016).

Almost surely, 2^213434013 is an apocalyptic number.

It is an amenable number.

213434013 is a deficient number, since it is larger than the sum of its proper divisors (94038243).

213434013 is a wasteful number, since it uses less digits than its factorization.

213434013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17924.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 213434013 is about 14609.3809930469. The cubic root of 213434013 is about 597.6146152446.

Adding to 213434013 its reverse (310434312), we get a palindrome (523868325).

The spelling of 213434013 in words is "two hundred thirteen million, four hundred thirty-four thousand, thirteen".