30111012012 has 24 divisors (see below), whose sum is σ = 70263244800. Its totient is φ = 10036401616.

The previous prime is 30111011947. The next prime is 30111012049. The reversal of 30111012012 is 21021011103.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163189 + ... + 294707.

It is an arithmetic number, because the mean of its divisors is an integer number (2927635200).

Almost surely, 2^30111012012 is an apocalyptic number.

It is an amenable number.

30111012012 is an abundant number, since it is smaller than the sum of its proper divisors (40152232788).

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

30111012012 is a wasteful number, since it uses less digits than its factorization.

30111012012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150605 (or 150603 counting only the distinct ones).

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

Adding to 30111012012 its reverse (21021011103), we get a palindrome (51132023115).

Subtracting from 30111012012 its reverse (21021011103), we obtain a palindrome (9090000909).

The spelling of 30111012012 in words is "thirty billion, one hundred eleven million, twelve thousand, twelve".