30112102123 has 8 divisors (see below), whose sum is σ = 31086446976. Its totient is φ = 29137944000.

The previous prime is 30112102103. The next prime is 30112102133. The reversal of 30112102123 is 32120121103.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30112102123 is a prime.

It is a super-2 number, since 2×30112102123² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30112102097 and 30112102106.

It is not an unprimeable number, because it can be changed into a prime (30112102103) 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, 329223 + ... + 410623.

It is an arithmetic number, because the mean of its divisors is an integer number (3885805872).

Almost surely, 2^30112102123 is an apocalyptic number.

30112102123 is a deficient number, since it is larger than the sum of its proper divisors (974344853).

30112102123 is a wasteful number, since it uses less digits than its factorization.

30112102123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93365.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 30112102123 its reverse (32120121103), we get a palindrome (62232223226).

The spelling of 30112102123 in words is "thirty billion, one hundred twelve million, one hundred two thousand, one hundred twenty-three".