30101031212 has 24 divisors (see below), whose sum is σ = 60798128160. Its totient is φ = 12772713600.

The previous prime is 30101031199. The next prime is 30101031239. The reversal of 30101031212 is 21213010103.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5319137 + ... + 5324792.

It is an arithmetic number, because the mean of its divisors is an integer number (2533255340).

Almost surely, 2^30101031212 is an apocalyptic number.

It is an amenable number.

30101031212 is an abundant number, since it is smaller than the sum of its proper divisors (30697096948).

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

30101031212 is a wasteful number, since it uses less digits than its factorization.

30101031212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10644041 (or 10644039 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 30101031212 its reverse (21213010103), we get a palindrome (51314041315).

The spelling of 30101031212 in words is "thirty billion, one hundred one million, thirty-one thousand, two hundred twelve".