30111212612 has 24 divisors (see below), whose sum is σ = 56813895936. Its totient is φ = 13881358368.

The previous prime is 30111212569. The next prime is 30111212641. The reversal of 30111212612 is 21621211103.

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, 290618 + ... + 380369.

It is an arithmetic number, because the mean of its divisors is an integer number (2367245664).

Almost surely, 2^30111212612 is an apocalyptic number.

It is an amenable number.

30111212612 is a deficient number, since it is larger than the sum of its proper divisors (26702683324).

30111212612 is a wasteful number, since it uses less digits than its factorization.

30111212612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671867 (or 671865 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 30111212612 its reverse (21621211103), we get a palindrome (51732423715).

The spelling of 30111212612 in words is "thirty billion, one hundred eleven million, two hundred twelve thousand, six hundred twelve".