30331213332 has 144 divisors (see below), whose sum is σ = 85359560832. Its totient is φ = 8208345600.

The previous prime is 30331213307. The next prime is 30331213379. The reversal of 30331213332 is 23331213303.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3740082 + ... + 3748182.

It is an arithmetic number, because the mean of its divisors is an integer number (592774728).

Almost surely, 2^30331213332 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 30331213332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42679780416).

30331213332 is an abundant number, since it is smaller than the sum of its proper divisors (55028347500).

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

30331213332 is a wasteful number, since it uses less digits than its factorization.

30331213332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8226 (or 8195 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 24.

Adding to 30331213332 its reverse (23331213303), we get a palindrome (53662426635).

The spelling of 30331213332 in words is "thirty billion, three hundred thirty-one million, two hundred thirteen thousand, three hundred thirty-two".