30101111111 has 4 divisors (see below), whose sum is σ = 30151872432. Its totient is φ = 30050349792.

The previous prime is 30101111099. The next prime is 30101111119. The reversal of 30101111111 is 11111110103.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30101111111 is a prime.

It is a Duffinian number.

30101111111 is a modest number, since divided by 111111 gives 30101 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 30101111092 and 30101111101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30101111119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25379771 + ... + 25380956.

It is an arithmetic number, because the mean of its divisors is an integer number (7537968108).

Almost surely, 2^30101111111 is an apocalyptic number.

30101111111 is a deficient number, since it is larger than the sum of its proper divisors (50761321).

30101111111 is an equidigital number, since it uses as much as digits as its factorization.

30101111111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50761320.

The product of its (nonzero) digits is 3, while the sum is 11.

Adding to 30101111111 its reverse (11111110103), we get a palindrome (41212221214).

The spelling of 30101111111 in words is "thirty billion, one hundred one million, one hundred eleven thousand, one hundred eleven".