213253500630 has 32 divisors (see below), whose sum is σ = 511821255168. Its totient is φ = 56866172000.

The previous prime is 213253500583. The next prime is 213253500637. The reversal of 213253500630 is 36005352312.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213253500637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1739245 + ... + 1857815.

It is an arithmetic number, because the mean of its divisors is an integer number (15994414224).

Almost surely, 2^213253500630 is an apocalyptic number.

213253500630 is an abundant number, since it is smaller than the sum of its proper divisors (298567754538).

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

213253500630 is a wasteful number, since it uses less digits than its factorization.

213253500630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178532.

The product of its (nonzero) digits is 16200, while the sum is 30.

Adding to 213253500630 its reverse (36005352312), we get a palindrome (249258852942).

The spelling of 213253500630 in words is "two hundred thirteen billion, two hundred fifty-three million, five hundred thousand, six hundred thirty".