30100031212 has 12 divisors (see below), whose sum is σ = 53795800800. Its totient is φ = 14729802416.

The previous prime is 30100031197. The next prime is 30100031231. The reversal of 30100031212 is 21213000103.

It is a junction number, because it is equal to n+sod(n) for n = 30100031192 and 30100031201.

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, 80053087 + ... + 80053462.

It is an arithmetic number, because the mean of its divisors is an integer number (4482983400).

Almost surely, 2^30100031212 is an apocalyptic number.

It is an amenable number.

30100031212 is a deficient number, since it is larger than the sum of its proper divisors (23695769588).

30100031212 is a wasteful number, since it uses less digits than its factorization.

30100031212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160106600 (or 160106598 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 30100031212 its reverse (21213000103), we get a palindrome (51313031315).

The spelling of 30100031212 in words is "thirty billion, one hundred million, thirty-one thousand, two hundred twelve".