30012123122 has 16 divisors (see below), whose sum is σ = 45876364632. Its totient is φ = 14720110080.

The previous prime is 30012123121. The next prime is 30012123133. The reversal of 30012123122 is 22132121003.

It can be written as a sum of positive squares in 4 ways, for example, as 29066499121 + 945624001 = 170489^2 + 30751^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30012123122.

It is not an unprimeable number, because it can be changed into a prime (30012123121) 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 7 ways as a sum of consecutive naturals, for example, 596672 + ... + 645012.

Almost surely, 2^30012123122 is an apocalyptic number.

30012123122 is a deficient number, since it is larger than the sum of its proper divisors (15864241510).

30012123122 is a wasteful number, since it uses less digits than its factorization.

30012123122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54253.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 30012123122 its reverse (22132121003), we get a palindrome (52144244125).

The spelling of 30012123122 in words is "thirty billion, twelve million, one hundred twenty-three thousand, one hundred twenty-two".