213021102130 has 8 divisors (see below), whose sum is σ = 383437983852. Its totient is φ = 85208440848.

The previous prime is 213021102121. The next prime is 213021102137. The reversal of 213021102130 is 31201120312.

It can be written as a sum of positive squares in 2 ways, for example, as 194928431049 + 18092671081 = 441507^2 + 134509^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (213021102137) 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 3 ways as a sum of consecutive naturals, for example, 10651055097 + ... + 10651055116.

Almost surely, 2^213021102130 is an apocalyptic number.

213021102130 is a deficient number, since it is larger than the sum of its proper divisors (170416881722).

213021102130 is a wasteful number, since it uses less digits than its factorization.

213021102130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21302110220.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 213021102130 its reverse (31201120312), we get a palindrome (244222222442).

The spelling of 213021102130 in words is "two hundred thirteen billion, twenty-one million, one hundred two thousand, one hundred thirty".