213251013 has 12 divisors (see below), whose sum is σ = 308455680. Its totient is φ = 141970536.

The previous prime is 213251011. The next prime is 213251023. The reversal of 213251013 is 310152312.

It is not a de Polignac number, because 213251013 - 2¹ = 213251011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213251011) 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 11 ways as a sum of consecutive naturals, for example, 9381 + ... + 22682.

It is an arithmetic number, because the mean of its divisors is an integer number (25704640).

Almost surely, 2^213251013 is an apocalyptic number.

It is an amenable number.

213251013 is a deficient number, since it is larger than the sum of its proper divisors (95204667).

213251013 is a wasteful number, since it uses less digits than its factorization.

213251013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32808 (or 32805 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 213251013 is about 14603.1165509284. The cubic root of 213251013 is about 597.4437665839.

The spelling of 213251013 in words is "two hundred thirteen million, two hundred fifty-one thousand, thirteen".