30120311011 has 4 divisors (see below), whose sum is σ = 34423212592. Its totient is φ = 25817409432.

The previous prime is 30120310999. The next prime is 30120311033. The reversal of 30120311011 is 11011302103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11011302103 = 58313 ⋅188831.

It is a cyclic number.

It is not a de Polignac number, because 30120311011 - 2¹¹ = 30120308963 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30120310982 and 30120311000.

It is not an unprimeable number, because it can be changed into a prime (30120314011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2151450780 + ... + 2151450793.

It is an arithmetic number, because the mean of its divisors is an integer number (8605803148).

Almost surely, 2^30120311011 is an apocalyptic number.

30120311011 is a deficient number, since it is larger than the sum of its proper divisors (4302901581).

30120311011 is an equidigital number, since it uses as much as digits as its factorization.

30120311011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4302901580.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 30120311011 its reverse (11011302103), we get a palindrome (41131613114).

The spelling of 30120311011 in words is "thirty billion, one hundred twenty million, three hundred eleven thousand, eleven".