30211232111 has 4 divisors (see below), whose sum is σ = 30212984112. Its totient is φ = 30209480112.

The previous prime is 30211232087. The next prime is 30211232137. The reversal of 30211232111 is 11123211203.

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-30211232111 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 30211232111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30211232911) 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, 849875 + ... + 884708.

It is an arithmetic number, because the mean of its divisors is an integer number (7553246028).

Almost surely, 2^30211232111 is an apocalyptic number.

30211232111 is a deficient number, since it is larger than the sum of its proper divisors (1752001).

30211232111 is a wasteful number, since it uses less digits than its factorization.

30211232111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1752000.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 30211232111 its reverse (11123211203), we get a palindrome (41334443314).

The spelling of 30211232111 in words is "thirty billion, two hundred eleven million, two hundred thirty-two thousand, one hundred eleven".