30211233312 has 48 divisors (see below), whose sum is σ = 85404836160. Its totient is φ = 9295763712.

The previous prime is 30211233301. The next prime is 30211233313. The reversal of 30211233312 is 21333211203.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (30211233313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12102612 + ... + 12105107.

It is an arithmetic number, because the mean of its divisors is an integer number (1779267420).

Almost surely, 2^30211233312 is an apocalyptic number.

30211233312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30211233312 is an abundant number, since it is smaller than the sum of its proper divisors (55193602848).

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

30211233312 is a wasteful number, since it uses less digits than its factorization.

30211233312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24207745 (or 24207737 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 30211233312 its reverse (21333211203), we get a palindrome (51544444515).

The spelling of 30211233312 in words is "thirty billion, two hundred eleven million, two hundred thirty-three thousand, three hundred twelve".