30231213120 has 224 divisors, whose sum is σ = 112262716800. Its totient is φ = 7637317632.

The previous prime is 30231213119. The next prime is 30231213157. The reversal of 30231213120 is 2131213203.

30231213120 is a `hidden beast` number, since 302 + 31 + 21 + 312 + 0 = 666.

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 = 30231213093 and 30231213102.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72082 + ... + 256238.

Almost surely, 2^30231213120 is an apocalyptic number.

30231213120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30231213120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56131358400).

30231213120 is an abundant number, since it is smaller than the sum of its proper divisors (82031503680).

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

30231213120 is a wasteful number, since it uses less digits than its factorization.

30231213120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184202 (or 184186 counting only the distinct ones).

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

Adding to 30231213120 its reverse (2131213203), we get a palindrome (32362426323).

The spelling of 30231213120 in words is "thirty billion, two hundred thirty-one million, two hundred thirteen thousand, one hundred twenty".