30120012111 has 16 divisors (see below), whose sum is σ = 46232181504. Its totient is φ = 17085802944.

The previous prime is 30120012101. The next prime is 30120012113. The reversal of 30120012111 is 11121002103.

It is not a de Polignac number, because 30120012111 - 2⁵ = 30120012079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30120012113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5231745 + ... + 5237498.

It is an arithmetic number, because the mean of its divisors is an integer number (2889511344).

Almost surely, 2^30120012111 is an apocalyptic number.

30120012111 is a deficient number, since it is larger than the sum of its proper divisors (16112169393).

30120012111 is a wasteful number, since it uses less digits than its factorization.

30120012111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10469390.

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

Adding to 30120012111 its reverse (11121002103), we get a palindrome (41241014214).

The spelling of 30120012111 in words is "thirty billion, one hundred twenty million, twelve thousand, one hundred eleven".