30012112111 has 4 divisors (see below), whose sum is σ = 30014123824. Its totient is φ = 30010100400.

The previous prime is 30012112099. The next prime is 30012112121. The reversal of 30012112111 is 11121121003.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30012112111 - 2¹⁵ = 30012079343 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30012112091 and 30012112100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30012112121) 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, 983310 + ... + 1013371.

It is an arithmetic number, because the mean of its divisors is an integer number (7503530956).

Almost surely, 2^30012112111 is an apocalyptic number.

30012112111 is a deficient number, since it is larger than the sum of its proper divisors (2011713).

30012112111 is a wasteful number, since it uses less digits than its factorization.

30012112111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2011712.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 30012112111 its reverse (11121121003), we get a palindrome (41133233114).

It can be divided in two parts, 3001 and 2112111, that added together give a palindrome (2115112).

The spelling of 30012112111 in words is "thirty billion, twelve million, one hundred twelve thousand, one hundred eleven".