30123211111 has 8 divisors (see below), whose sum is σ = 34674200960. Its totient is φ = 25634139768.

The previous prime is 30123211039. The next prime is 30123211121. The reversal of 30123211111 is 11111232103.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30123211111 - 2¹³ = 30123202919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30123211121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15478581 + ... + 15480526.

It is an arithmetic number, because the mean of its divisors is an integer number (4334275120).

Almost surely, 2^30123211111 is an apocalyptic number.

30123211111 is a deficient number, since it is larger than the sum of its proper divisors (4550989849).

30123211111 is a wasteful number, since it uses less digits than its factorization.

30123211111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30959253.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 30123211111 its reverse (11111232103), we get a palindrome (41234443214).

It can be divided in two parts, 3012 and 3211111, that added together give a palindrome (3214123).

The spelling of 30123211111 in words is "thirty billion, one hundred twenty-three million, two hundred eleven thousand, one hundred eleven".