30012013212 has 24 divisors (see below), whose sum is σ = 70135289616. Its totient is φ = 9988681728.

The previous prime is 30012013193. The next prime is 30012013219. The reversal of 30012013212 is 21231021003.

It is a junction number, because it is equal to n+sod(n) for n = 30012013191 and 30012013200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30012013219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1907173 + ... + 1922844.

It is an arithmetic number, because the mean of its divisors is an integer number (2922303734).

Almost surely, 2^30012013212 is an apocalyptic number.

It is an amenable number.

30012013212 is an abundant number, since it is smaller than the sum of its proper divisors (40123276404).

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

30012013212 is a wasteful number, since it uses less digits than its factorization.

30012013212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3830677 (or 3830675 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 30012013212 its reverse (21231021003), we get a palindrome (51243034215).

The spelling of 30012013212 in words is "thirty billion, twelve million, thirteen thousand, two hundred twelve".