30120112011 has 32 divisors (see below), whose sum is σ = 44043637248. Its totient is φ = 18157879040.

The previous prime is 30120111907. The next prime is 30120112021. The reversal of 30120112011 is 11021102103.

It is a cyclic number.

It is not a de Polignac number, because 30120112011 - 2¹⁰ = 30120110987 is a prime.

It is a super-2 number, since 2×30120112011² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30120112021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14431210 + ... + 14433296.

It is an arithmetic number, because the mean of its divisors is an integer number (1376363664).

Almost surely, 2^30120112011 is an apocalyptic number.

30120112011 is a deficient number, since it is larger than the sum of its proper divisors (13923525237).

30120112011 is a wasteful number, since it uses less digits than its factorization.

30120112011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4211.

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

Adding to 30120112011 its reverse (11021102103), we get a palindrome (41141214114).

The spelling of 30120112011 in words is "thirty billion, one hundred twenty million, one hundred twelve thousand, eleven".