30123104122 has 4 divisors (see below), whose sum is σ = 45184656186. Its totient is φ = 15061552060.

The previous prime is 30123104111. The next prime is 30123104129. The reversal of 30123104122 is 22140132103.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22140132103 = 126233 ⋅175391.

It can be written as a sum of positive squares in only one way, i.e., 26046409321 + 4076694801 = 161389^2 + 63849^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30123104122.

It is not an unprimeable number, because it can be changed into a prime (30123104129) 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 as a sum of consecutive naturals, namely, 7530776029 + ... + 7530776032.

Almost surely, 2^30123104122 is an apocalyptic number.

30123104122 is a deficient number, since it is larger than the sum of its proper divisors (15061552064).

30123104122 is a wasteful number, since it uses less digits than its factorization.

30123104122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15061552063.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 30123104122 its reverse (22140132103), we get a palindrome (52263236225).

The spelling of 30123104122 in words is "thirty billion, one hundred twenty-three million, one hundred four thousand, one hundred twenty-two".