213113031210 has 128 divisors (see below), whose sum is σ = 600942827520. Its totient is φ = 53655436800.

The previous prime is 213113031199. The next prime is 213113031233. The reversal of 213113031210 is 12130311312.

213113031210 is a `hidden beast` number, since 2 + 1 + 311 + 30 + 312 + 10 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 32664 + ... + 653676.

It is an arithmetic number, because the mean of its divisors is an integer number (4694865840).

Almost surely, 2^213113031210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213113031210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300471413760).

213113031210 is an abundant number, since it is smaller than the sum of its proper divisors (387829796310).

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

213113031210 is a wasteful number, since it uses less digits than its factorization.

213113031210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621101 (or 621095 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 213113031210 its reverse (12130311312), we get a palindrome (225243342522).

The spelling of 213113031210 in words is "two hundred thirteen billion, one hundred thirteen million, thirty-one thousand, two hundred ten".