213012203130 has 48 divisors (see below), whose sum is σ = 562910951304. Its totient is φ = 55872051840.

The previous prime is 213012203123. The next prime is 213012203137. The reversal of 213012203130 is 31302210312.

213012203130 is a `hidden beast` number, since 2 + 130 + 1 + 220 + 313 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (213012203123) and next prime (213012203137).

It can be written as a sum of positive squares in 4 ways, for example, as 127506840561 + 85505362569 = 357081^2 + 292413^2 .

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

It is not an unprimeable number, because it can be changed into a prime (213012203137) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19394529 + ... + 19405508.

Almost surely, 2^213012203130 is an apocalyptic number.

213012203130 is an abundant number, since it is smaller than the sum of its proper divisors (349898748174).

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

213012203130 is a wasteful number, since it uses less digits than its factorization.

213012203130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38800111 (or 38800108 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 213012203130 its reverse (31302210312), we get a palindrome (244314413442).

The spelling of 213012203130 in words is "two hundred thirteen billion, twelve million, two hundred three thousand, one hundred thirty".