30112100123 has 16 divisors (see below), whose sum is σ = 34595098560. Its totient is φ = 25674624000.

The previous prime is 30112100101. The next prime is 30112100129. The reversal of 30112100123 is 32100121103.

It is a cyclic number.

It is not a de Polignac number, because 30112100123 - 2³² = 25817132827 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30112100098 and 30112100107.

It is not an unprimeable number, because it can be changed into a prime (30112100129) 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, 1917383 + ... + 1933023.

It is an arithmetic number, because the mean of its divisors is an integer number (2162193660).

Almost surely, 2^30112100123 is an apocalyptic number.

30112100123 is a deficient number, since it is larger than the sum of its proper divisors (4482998437).

30112100123 is a wasteful number, since it uses less digits than its factorization.

30112100123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17078.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 30112100123 its reverse (32100121103), we get a palindrome (62212221226).

The spelling of 30112100123 in words is "thirty billion, one hundred twelve million, one hundred thousand, one hundred twenty-three".