30331140212 has 6 divisors (see below), whose sum is σ = 53079495378. Its totient is φ = 15165570104.

The previous prime is 30331140209. The next prime is 30331140233. The reversal of 30331140212 is 21204113303.

It can be written as a sum of positive squares in only one way, i.e., 22402306276 + 7928833936 = 149674^2 + 89044^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3791392523 + ... + 3791392530.

It is an arithmetic number, because the mean of its divisors is an integer number (8846582563).

Almost surely, 2^30331140212 is an apocalyptic number.

It is an amenable number.

30331140212 is a deficient number, since it is larger than the sum of its proper divisors (22748355166).

30331140212 is a wasteful number, since it uses less digits than its factorization.

30331140212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7582785057 (or 7582785055 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 30331140212 its reverse (21204113303), we get a palindrome (51535253515).

The spelling of 30331140212 in words is "thirty billion, three hundred thirty-one million, one hundred forty thousand, two hundred twelve".