30102012012 has 12 divisors (see below), whose sum is σ = 70238028056. Its totient is φ = 10034004000.

The previous prime is 30102012001. The next prime is 30102012019. The reversal of 30102012012 is 21021020103.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×30102012012² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 2508501001 = 30102012012 / (3 + 0 + 1 + 0 + 2 + 0 + 1 + 2 + 0 + 1 + 2).

It is not an unprimeable number, because it can be changed into a prime (30102012019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1254250489 + ... + 1254250512.

Almost surely, 2^30102012012 is an apocalyptic number.

It is an amenable number.

30102012012 is an abundant number, since it is smaller than the sum of its proper divisors (40136016044).

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

30102012012 is a wasteful number, since it uses less digits than its factorization.

30102012012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2508501008 (or 2508501006 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 30102012012 its reverse (21021020103), we get a palindrome (51123032115).

The spelling of 30102012012 in words is "thirty billion, one hundred two million, twelve thousand, twelve".