30233012123 has 16 divisors (see below), whose sum is σ = 31362685920. Its totient is φ = 29127631104.

The previous prime is 30233012113. The next prime is 30233012149. The reversal of 30233012123 is 32121033203.

It is a cyclic number.

It is not a de Polignac number, because 30233012123 - 2⁸ = 30233011867 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30233012095 and 30233012104.

It is not an unprimeable number, because it can be changed into a prime (30233012113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 868940 + ... + 903062.

It is an arithmetic number, because the mean of its divisors is an integer number (1960167870).

Almost surely, 2^30233012123 is an apocalyptic number.

30233012123 is a deficient number, since it is larger than the sum of its proper divisors (1129673797).

30233012123 is a wasteful number, since it uses less digits than its factorization.

30233012123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34478.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 30233012123 its reverse (32121033203), we get a palindrome (62354045326).

The spelling of 30233012123 in words is "thirty billion, two hundred thirty-three million, twelve thousand, one hundred twenty-three".