30231310212 has 144 divisors (see below), whose sum is σ = 80114216000. Its totient is φ = 9967681152.

The previous prime is 30231310211. The next prime is 30231310253. The reversal of 30231310212 is 21201313203.

30231310212 is a `hidden beast` number, since 302 + 31 + 310 + 21 + 2 = 666.

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 (30231310211) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 60583539 + ... + 60584037.

Almost surely, 2^30231310212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30231310212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40057108000).

30231310212 is an abundant number, since it is smaller than the sum of its proper divisors (49882905788).

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

30231310212 is a wasteful number, since it uses less digits than its factorization.

30231310212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1072 (or 1058 counting only the distinct ones).

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

Adding to 30231310212 its reverse (21201313203), we get a palindrome (51432623415).

The spelling of 30231310212 in words is "thirty billion, two hundred thirty-one million, three hundred ten thousand, two hundred twelve".