213312012030 has 224 divisors, whose sum is σ = 630142480800. Its totient is φ = 51645392640.

The previous prime is 213312011993. The next prime is 213312012037. The reversal of 213312012030 is 30210213312.

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

It is a junction number, because it is equal to n+sod(n) for n = 213312011994 and 213312012012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213312012037) by changing a digit.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 5762521 + ... + 5799419.

It is an arithmetic number, because the mean of its divisors is an integer number (2813136075).

Almost surely, 2^213312012030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213312012030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (315071240400).

213312012030 is an abundant number, since it is smaller than the sum of its proper divisors (416830468770).

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

213312012030 is a wasteful number, since it uses less digits than its factorization.

213312012030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36998 (or 36983 counting only the distinct ones).

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

Adding to 213312012030 its reverse (30210213312), we get a palindrome (243522225342).

The spelling of 213312012030 in words is "two hundred thirteen billion, three hundred twelve million, twelve thousand, thirty".