210203212130 has 8 divisors (see below), whose sum is σ = 378365781852. Its totient is φ = 84081284848.

The previous prime is 210203212129. The next prime is 210203212157. The reversal of 210203212130 is 31212302012.

It can be written as a sum of positive squares in 2 ways, for example, as 210069138889 + 134073241 = 458333^2 + 11579^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 210203212099 and 210203212108.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10510160597 + ... + 10510160616.

Almost surely, 2^210203212130 is an apocalyptic number.

210203212130 is a deficient number, since it is larger than the sum of its proper divisors (168162569722).

210203212130 is a wasteful number, since it uses less digits than its factorization.

210203212130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21020321220.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 210203212130 its reverse (31212302012), we get a palindrome (241415514142).

The spelling of 210203212130 in words is "two hundred ten billion, two hundred three million, two hundred twelve thousand, one hundred thirty".