30042123111 has 48 divisors (see below), whose sum is σ = 58263528960. Its totient is φ = 14405808960.

The previous prime is 30042123107. The next prime is 30042123113. The reversal of 30042123111 is 11132124003.

30042123111 is a `hidden beast` number, since 3 + 0 + 0 + 421 + 231 + 11 = 666.

It is not a de Polignac number, because 30042123111 - 2² = 30042123107 is a prime.

It is a super-2 number, since 2×30042123111² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30042123113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1658331 + ... + 1676348.

It is an arithmetic number, because the mean of its divisors is an integer number (1213823520).

Almost surely, 2^30042123111 is an apocalyptic number.

30042123111 is a deficient number, since it is larger than the sum of its proper divisors (28221405849).

30042123111 is a wasteful number, since it uses less digits than its factorization.

30042123111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3334716 (or 3334713 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 30042123111 its reverse (11132124003), we get a palindrome (41174247114).

The spelling of 30042123111 in words is "thirty billion, forty-two million, one hundred twenty-three thousand, one hundred eleven".