210131230 has 16 divisors (see below), whose sum is σ = 383418864. Its totient is φ = 82900800.

The previous prime is 210131221. The next prime is 210131249. The reversal of 210131230 is 32131012.

It is a self number, because there is not a number n which added to its sum of digits gives 210131230.

It is a congruent number.

It is an unprimeable number.

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, 143196 + ... + 144655.

It is an arithmetic number, because the mean of its divisors is an integer number (23963679).

Almost surely, 2^210131230 is an apocalyptic number.

210131230 is a deficient number, since it is larger than the sum of its proper divisors (173287634).

210131230 is a wasteful number, since it uses less digits than its factorization.

210131230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287931.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 210131230 is about 14495.9039042069. The cubic root of 210131230 is about 594.5159823326.

Adding to 210131230 its reverse (32131012), we get a palindrome (242262242).

The spelling of 210131230 in words is "two hundred ten million, one hundred thirty-one thousand, two hundred thirty".