30331221032 has 32 divisors (see below), whose sum is σ = 65040196800. Its totient is φ = 12990150144.

The previous prime is 30331221029. The next prime is 30331221059. The reversal of 30331221032 is 23012213303.

It is a junction number, because it is equal to n+sod(n) for n = 30331220995 and 30331221013.

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 7 ways as a sum of consecutive naturals, for example, 103913 + ... + 267320.

It is an arithmetic number, because the mean of its divisors is an integer number (2032506150).

Almost surely, 2^30331221032 is an apocalyptic number.

It is an amenable number.

30331221032 is an abundant number, since it is smaller than the sum of its proper divisors (34708975768).

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

30331221032 is a wasteful number, since it uses less digits than its factorization.

30331221032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372705 (or 372701 counting only the distinct ones).

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

Adding to 30331221032 its reverse (23012213303), we get a palindrome (53343434335).

The spelling of 30331221032 in words is "thirty billion, three hundred thirty-one million, two hundred twenty-one thousand, thirty-two".