30120042311 has 16 divisors (see below), whose sum is σ = 31728680640. Its totient is φ = 28536668160.

The previous prime is 30120042307. The next prime is 30120042317. The reversal of 30120042311 is 11324002103.

It is a cyclic number.

It is not a de Polignac number, because 30120042311 - 2² = 30120042307 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30120042311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30120042317) 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 15 ways as a sum of consecutive naturals, for example, 5405735 + ... + 5411303.

It is an arithmetic number, because the mean of its divisors is an integer number (1983042540).

Almost surely, 2^30120042311 is an apocalyptic number.

30120042311 is a deficient number, since it is larger than the sum of its proper divisors (1608638329).

30120042311 is a wasteful number, since it uses less digits than its factorization.

30120042311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7786.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 30120042311 its reverse (11324002103), we get a palindrome (41444044414).

The spelling of 30120042311 in words is "thirty billion, one hundred twenty million, forty-two thousand, three hundred eleven".