30231220112 has 60 divisors (see below), whose sum is σ = 63326282796. Its totient is φ = 13970672640.

The previous prime is 30231220109. The next prime is 30231220127. The reversal of 30231220112 is 21102213203.

It can be written as a sum of positive squares in 2 ways, for example, as 625200016 + 29606020096 = 25004^2 + 172064^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 172988 + ... + 300644.

Almost surely, 2^30231220112 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 30231220112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31663141398).

30231220112 is an abundant number, since it is smaller than the sum of its proper divisors (33095062684).

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

30231220112 is a wasteful number, since it uses less digits than its factorization.

30231220112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127744 (or 127719 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 30231220112 its reverse (21102213203), we get a palindrome (51333433315).

The spelling of 30231220112 in words is "thirty billion, two hundred thirty-one million, two hundred twenty thousand, one hundred twelve".