213031302 has 16 divisors (see below), whose sum is σ = 464795712. Its totient is φ = 64554920.

The previous prime is 213031289. The next prime is 213031309. The reversal of 213031302 is 203130312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213031309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1613808 + ... + 1613939.

It is an arithmetic number, because the mean of its divisors is an integer number (29049732).

Almost surely, 2^213031302 is an apocalyptic number.

213031302 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

213031302 is an abundant number, since it is smaller than the sum of its proper divisors (251764410).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213031302 is a wasteful number, since it uses less digits than its factorization.

213031302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3227763.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 213031302 is about 14595.5918687801. The cubic root of 213031302 is about 597.2385153921.

Adding to 213031302 its reverse (203130312), we get a palindrome (416161614).

The spelling of 213031302 in words is "two hundred thirteen million, thirty-one thousand, three hundred two".