30123243111 has 16 divisors (see below), whose sum is σ = 43258930400. Its totient is φ = 18535219200.

The previous prime is 30123243103. The next prime is 30123243121. The reversal of 30123243111 is 11134232103.

It is not a de Polignac number, because 30123243111 - 2³ = 30123243103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30123243121) 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, 334215 + ... + 414663.

It is an arithmetic number, because the mean of its divisors is an integer number (2703683150).

Almost surely, 2^30123243111 is an apocalyptic number.

30123243111 is a deficient number, since it is larger than the sum of its proper divisors (13135687289).

30123243111 is a wasteful number, since it uses less digits than its factorization.

30123243111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90066.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 30123243111 its reverse (11134232103), we get a palindrome (41257475214).

The spelling of 30123243111 in words is "thirty billion, one hundred twenty-three million, two hundred forty-three thousand, one hundred eleven".