30120110111 has 64 divisors (see below), whose sum is σ = 40529922048. Its totient is φ = 21708546048.

The previous prime is 30120110099. The next prime is 30120110131. The reversal of 30120110111 is 11101102103.

It is a happy number.

It is not a de Polignac number, because 30120110111 - 2²² = 30115915807 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30120110092 and 30120110101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30120110131) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7514870 + ... + 7518876.

It is an arithmetic number, because the mean of its divisors is an integer number (633280032).

Almost surely, 2^30120110111 is an apocalyptic number.

30120110111 is a deficient number, since it is larger than the sum of its proper divisors (10409811937).

30120110111 is a wasteful number, since it uses less digits than its factorization.

30120110111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4200.

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 30120110111 its reverse (11101102103), we get a palindrome (41221212214).

The spelling of 30120110111 in words is "thirty billion, one hundred twenty million, one hundred ten thousand, one hundred eleven".