30321032312 has 16 divisors (see below), whose sum is σ = 60196167360. Its totient is φ = 14268721024.

The previous prime is 30321032267. The next prime is 30321032351. The reversal of 30321032312 is 21323012303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111474248 + ... + 111474519.

It is an arithmetic number, because the mean of its divisors is an integer number (3762260460).

Almost surely, 2^30321032312 is an apocalyptic number.

It is an amenable number.

30321032312 is a deficient number, since it is larger than the sum of its proper divisors (29875135048).

30321032312 is a wasteful number, since it uses less digits than its factorization.

30321032312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222948790 (or 222948786 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 30321032312 its reverse (21323012303), we get a palindrome (51644044615).

The spelling of 30321032312 in words is "thirty billion, three hundred twenty-one million, thirty-two thousand, three hundred twelve".